Energy absorption structure for automobile side door

Abstract

The invention provides an energy absorption structure for an automobile side door, and belongs to the technical field of automobiles, the energy absorption structure comprises a collision energy absorption air bag, a mounting bracket, collision protection foam and an anti-collision beam steel plate, the collision energy absorption air bag is mounted in the automobile side door in a rectangular-ambulatory-plane shape through the mounting bracket; the collision protection foam is arranged in the surrounding area of the collision energy absorption air bag, and the anti-collision beam steel plate is obliquely installed on an inner plate of the automobile side door. The technical problem that in the prior art, the safety of passengers is effectively protected in the side collision process of an automobile is solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to an energy absorbing structure for an automobile side door. Background Art

[0002] At present, the number of cars in China is increasing, and discussions about car safety have become the focus of public opinion from time to time. Among them, car side collisions cause a relatively high proportion of car accidents and casualties, and the safety design for car side collisions has become the focus of attention of car R&D personnel. Unlike head-on collisions, since there is no crumple zone buffer in side collisions, the entire collision relies entirely on the structure of the car door, B-pillar and crossbeam to achieve hard protection. In side collisions, energy absorption and crumple zone seem to have become a design vacuum. Summary of the invention

[0003] In order to solve the above technical problems, the present invention invents an energy absorption structure for a vehicle side door to solve the technical problem of how to effectively protect the safety of passengers in a side collision in the prior art. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0004] To achieve the above-mentioned objectives, the present invention provides an energy-absorbing structure for a vehicle side door, comprising a collision energy-absorbing airbag, a mounting bracket, a collision protection foam and an anti-collision beam steel plate, wherein the collision energy-absorbing airbag is installed in a U-shape in the vehicle side door through the mounting bracket, the collision protection foam is arranged in the surrounding area of ​​the collision energy-absorbing airbag, and the anti-collision beam steel plate is installed obliquely on the inner panel of the vehicle side door.

[0005] Optionally, the mounting bracket is provided in plurality.

[0006] Optionally, the mounting bracket is arranged on the inner panel of the vehicle side door. Optionally, the mounting bracket is connected to the inner plate by welding or bolting.

[0007] Optionally, the collision protection foam is arranged on the outer panel of the automobile side door, and the thickness of the collision protection foam is greater than 80 mm, and the width and length are both greater than 100 mm.

[0008] Optionally, the collision protection foam is adhered to the outer panel via a mounting patch.

[0009] Optionally, the cross-sectional shape of the anti-collision beam steel plate is a W-shape with a groove, and the depth of the groove is greater than 40 mm.

[0010] Optionally, the anti-collision beam steel plate covers more than two-thirds of the height of the inner panel in the height direction of the automobile side door. Optionally, the installation position of the collision protection foam corresponds to a position outside the anti-collision beam steel plate. Optionally, the collision protection foam is provided in plurality.

[0011] The technical solution of the present invention may include the following beneficial effects: The energy absorbing structure for the side door of the automobile of the present invention is provided by arranging the collision protection foam, the anti-collision beam steel plate and the energy absorbing airbag in the side door of the automobile, and arranging the energy absorbing airbag in a U-shaped structure, that is, adding a structure and installation form for absorbing energy in a side collision to the side door. When the vehicle collides sideways, the collision energy absorbing airbag expands due to the collision force and fills between the inner and outer plates of the side door. At the same time, the anti-collision beam steel plate, as an energy absorbing part, is crushed and deformed to absorb energy during the collision. In addition, the area that cannot be filled after expansion is supported by the collision protection foam. These three structures complement each other and work together to absorb the collision energy, thereby protecting the passengers in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic structural diagram of an energy absorption structure for a vehicle side door according to an embodiment of the present invention; Figure 2 Schematic diagram of the structure of the anti-collision beam steel plate in an embodiment of the present invention.

[0013] Markings in the figure: 1. Collision protection foam; 2. Collision energy-absorbing airbag; 3. Installation bracket; 4. Side door inner panel; 5. Anti-collision beam steel plate; 6. Installation patch. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0015] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0016] The research direction and structural features of this patent are to add three energy absorption modules to the existing structure of the current car, so that the vehicle can effectively protect the safety of the occupants or effectively reduce the degree of injury to the occupants when encountering a side collision or hitting objects such as trees and poles. Figure 1 FIG. 1 is a schematic diagram of an energy absorbing structure for a side door of a vehicle according to an embodiment of the present invention. Figure 1 As shown, the present invention provides an energy absorbing structure for a side door of a vehicle, comprising a collision energy absorbing airbag 2, a mounting bracket 3, a collision protection foam 1 and an anti-collision beam steel plate 5, wherein the collision energy absorbing airbag 2 is installed in a U-shape in the side door of the vehicle through the mounting bracket 3, the collision protection foam 1 is arranged in the surrounding area of ​​the collision energy absorbing airbag 2, and the anti-collision beam steel plate 5 is installed obliquely on the inner plate of the side door of the vehicle.

[0017] Specifically, by arranging the collision protection foam 1 and the energy absorbing airbag 2 in the side door of the car, and by arranging the energy absorbing airbag 2 in a U-shaped structure, the two ends of the anti-collision beam steel plate 5 are respectively installed and welded at the upper and lower positions on both sides of the side door inner plate 4, that is, a structure and installation form for absorbing energy in a side collision are added to the side door. When the vehicle has a side collision, the collision energy absorbing airbag 2 expands due to the collision force and fills between the inner and outer plates of the side door. The area that cannot be filled after expansion is supported by the collision protection foam 1. At the same time, the anti-collision beam steel plate 5, as an energy absorbing part, is crushed and deformed during the collision, which has the effect of absorbing the collision energy, thereby protecting the occupants in the car. The installation bracket is fixed on the inner plate of the side door, and the arrangement position is similar to the U-shaped, so as to achieve the best collision energy absorption effect to protect the torso and knees of the occupants.

[0018] As an optional embodiment, the mounting bracket 3 is provided in plurality. The plurality of mounting brackets 3 are installed in the side door of the vehicle in a U-shaped path, and then the collision energy absorbing airbag 2 is installed on the mounting bracket 3, so that the collision energy absorbing airbag 2 is arranged in the side of the vehicle in a U-shaped path.

[0019] As an optional embodiment, the mounting bracket 3 is arranged on the inner panel 4 of the vehicle side door. The collision energy absorbing airbag 2 is arranged on the inner panel 4 through the mounting bracket 3 to form an anti-collision structure between the inner and outer panels of the side door.

[0020] As an optional embodiment, the mounting bracket 3 is connected to the inner panel 4 by welding or bolting. According to the structure of the inner panel of the vehicle side door, the mounting bracket 3 can be connected to the inner panel 4 by welding or bolting, but is not limited to the welding or bolting.

[0021] As an optional embodiment, the collision protection foam 1 is arranged on the outer panel of the vehicle side door, and the thickness of the collision protection foam is greater than 80 mm, and the width and length are both greater than 100 mm. The collision protection foam 1 is arranged on the outer panel of the side of the vehicle, corresponding to the position outside the U-shaped area of ​​the collision energy absorbing airbag 2, so that the vehicle side door forms a collision protection area with a wide coverage. As an optional embodiment, the collision protection foam 1 is attached to the outer panel via the mounting patch 6. The collision protection foam 1 is attached to the outer panel of the side of the car via the mounting patch 6, which is easy and convenient to install.

[0022] like Figure 2 As shown, as an optional embodiment, the cross-sectional shape of the anti-collision beam steel plate 5 is a W-shaped groove, the groove depth is greater than 40mm, and the plate material thickness is at least 1.2mm; the anti-collision beam steel plate 5 covers more than two-thirds of the height of the inner plate in the height direction of the vehicle side door. The installation position of the collision protection foam 1 is correspondingly set at a position outside the anti-collision beam steel plate 5, and is set to multiple; further, at least four collision protection foams 1 are set, arranged at four corner positions.

[0023] Based on the above technical solution, the implementation steps are as follows: First, fix the mounting bracket to the inner panel of the side door by welding or bolting, and then install the collision energy-absorbing airbag on the mounting bracket.

[0024] Secondly, fix the anti-collision beam steel plate on the side door inner panel. The installation method can be welding connection. The welding positions are arranged on both sides of the side door inner panel, and the Z-direction height difference between the upper and lower positions needs to be greater than two-thirds of the Z-direction height of the side door inner panel.

[0025] Then, stick the installation patch on the collision protection foam, and then stick them together on the side door outer panel. The collision protection foam needs to avoid the anti-collision beam steel plate on the side door inner panel.

[0026] Finally, when the vehicle collides from the side, the collision energy-absorbing airbag expands due to the collision force and fills between the inner and outer panels of the side door. The area that cannot be filled after expansion is supported by the collision protection foam. At the same time, the anti-collision beam steel plate 5 acts as an energy-absorbing part and is crushed and deformed during the collision, thereby absorbing the collision energy and protecting the occupants in the vehicle.

[0027] The patent of this invention is a structure and concept of an energy-absorbing structure and its layout form for a side door of a car, which can provide layout ideas, layout plans, and layout structures for a side collision of a car, and provides all possibilities for the definition of energy-absorbing objects, energy-absorbing structures, energy-absorbing space layout, and energy-absorbing ideas between the inner and outer panels of the side door in a side collision.

[0028] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An energy absorbing structure for a side door of an automobile, characterized in that: The invention comprises a collision energy absorbing airbag, a mounting bracket, a collision protection foam and an anti-collision beam steel plate. The collision energy absorbing airbag is installed in a U-shape in a side door of a car through the mounting bracket. The collision protection foam is arranged in the surrounding area of ​​the collision energy absorbing airbag. The anti-collision beam steel plate is installed obliquely on the inner plate of the side door of the car.

2. The energy absorbing structure for a vehicle side door according to claim 1, characterized in that: The mounting bracket is provided in plurality.

3. The energy absorbing structure for a vehicle side door according to claim 2, characterized in that: The mounting bracket is arranged on the inner plate of the automobile side door.

4. The energy absorbing structure for a vehicle side door according to claim 3, characterized in that: The mounting bracket is connected to the inner plate by welding or bolting.

5. The energy absorbing structure for a vehicle side door according to claim 4, characterized in that: The collision protection foam is arranged on the outer panel of the automobile side door, and the thickness of the collision protection foam is greater than 80 mm, and the width and length are both greater than 100 mm.

6. The energy absorbing structure for a vehicle side door according to claim 5, characterized in that: The collision protection foam is adhered to the outer panel by means of a mounting patch.

7. The energy absorbing structure for a vehicle side door according to claim 6, characterized in that: The cross-sectional shape of the anti-collision beam steel plate is a W-shape with a groove, and the depth of the groove is greater than 40 mm.

8. The energy absorbing structure for a vehicle side door according to claim 7, characterized in that: The anti-collision beam steel plate covers more than two-thirds of the height of the inner plate in the height direction of the automobile side door.

9. The energy absorbing structure for a vehicle side door according to claim 8, characterized in that: The installation position of the collision protection foam corresponds to a position outside the anti-collision beam steel plate.

10. The energy absorbing structure for a vehicle side door according to any one of claims 1 to 9, characterized in that: The collision protection foam is provided in plurality.

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