Energy-absorbing structure for a side door of a motor vehicle

Abstract

The application provides an energy-absorbing structure for a side door of an automobile, and belongs to the technical field of automobiles, and comprises a collision energy-absorbing air bag, a mounting support collision protection foam and a crash beam steel plate. The collision energy-absorbing air bag is installed in a side door of an automobile in a back-shaped mode through the mounting support. The collision protection foam is arranged in the surrounding area of the collision energy-absorbing air bag. The crash beam steel plate is obliquely installed on the inner plate of the side door of the automobile. The technical problem of how to effectively protect the safety of passengers in the side collision of an automobile in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile, in particular to an energy absorption structure for automobile side door. BACKGROUND

[0002] At present, the domestic automobile ownership is more and more, and the discussion on the safety of automobile becomes the focus of social public opinion from time to time. The car accident and personnel casualty caused by the side collision of automobile account for a high proportion, and the safety design for the side collision of automobile becomes the focus of the automobile researchers. Unlike the front collision, since there is no collapse area buffer in the side collision, the whole collision is completely relied on the structure of the door, B column and beam to realize the hard protection, and the energy absorption collapse seems to be a design vacuum zone in the side collision. SUMMARY

[0003] The present application is to solve the above technical problems, and an energy absorption structure for automobile side door is invented to solve the technical problem of how to effectively protect the safety of passengers in the side collision of automobile in the prior art. The preferred technical solutions in the many technical solutions provided by the present application can produce many technical effects, which are described in detail below.

[0004] To achieve the above-mentioned purpose, the present application provides an energy absorption structure for automobile side door, comprising a collision energy absorption air bag, a mounting bracket, a collision protection foam and an anti-collision beam steel plate, the collision energy absorption air bag is installed in the automobile side door in a back-shaped manner 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 installed on the inner plate of the automobile side door in an inclined manner.

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

[0006] Optionally, the mounting bracket is arranged on the inner plate of the automobile side door.

[0007] Optionally, the mounting bracket is connected with the inner plate by welding or bolt connection.

[0008] Optionally, the collision protection foam is arranged on the outer plate of the automobile side door, the thickness of the collision protection foam is greater than 80mm, and the width and length are both greater than 100mm.

[0009] Optionally, the collision protection foam is pasted on the outer plate by mounting patch.

[0010] Optionally, the cross-sectional shape of the anti-collision beam steel plate is W type with a groove, and the groove depth is greater than 40mm.

[0011] Optionally, 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.

[0012] Optionally, the installation position of the collision protection foam corresponds to a position arranged outside the anti-collision beam steel plate.

[0013] Optionally, the collision protection foam is arranged in a plurality.

[0014] The technical scheme of the present application can include the following beneficial effects:

[0015] The energy-absorbing structure for the side door of the automobile of the present application is arranged in the side door of the automobile by arranging the collision protection foam, the anti-collision beam steel plate and the energy-absorbing airbag, and the energy-absorbing airbag is arranged in a character-shaped structure, that is, the structure and the installation form for absorbing energy in the side collision are added to the side door, when the vehicle is subjected to the side collision, the collision energy-absorbing airbag is inflated by the collision force, and is filled between the inner plate and the outer plate of the side door, and the anti-collision beam steel plate is crushed and deformed to absorb energy when the collision occurs. The area that cannot be filled after inflation is supported by the collision protection foam, the three structures complement each other and jointly act to absorb the collision energy, thereby protecting the passengers in the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute any improper limitation to the present application. In the drawings:

[0017] Figure 1 FIG. 1 is a structural schematic diagram of an energy-absorbing structure for a side door of an automobile according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a structural schematic diagram of an anti-collision beam steel plate according to an embodiment of the present application.

[0019] Marked in the figure: 1, collision protection foam; 2, collision energy-absorbing airbag; 3, mounting bracket; 4, inner plate of side door; 5, anti-collision beam steel plate; 6, mounting patch. DETAILED DESCRIPTION

[0020] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0021] The following detailed description is exemplary description, and is intended to provide further detailed description of the present application. Unless otherwise specified, all technical terms used in the present application have the same meanings as those generally understood by the general technical personnel in the field to which the present application belongs. The terms used in the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application.

[0022] The research direction and structural features of the patent are three energy absorption modules added to the current vehicle structure, which can effectively protect the passengers when the vehicle encounters side collision or hits objects such as trees and power poles, or effectively reduce the injury degree of the passengers.

[0023] Figure 1 is a structural schematic diagram of an energy absorption structure for a side door of a vehicle according to an embodiment of the present application, as Figure 1 The present application provides an energy absorption structure for a side door of a vehicle, which comprises a collision energy absorption air bag 2, a mounting bracket 3, a collision protection foam 1 and a crash beam steel plate 5. The collision energy absorption air bag 2 is installed in the side door of the vehicle in a character-shaped manner through the mounting bracket 3. The collision protection foam 1 is arranged in the surrounding area of the collision energy absorption air bag 2. The crash beam steel plate 5 is installed on the inner panel of the side door in an inclined manner.

[0024] Specifically, the collision protection foam 1 and the energy absorption safety air bag 2 are arranged in the side door of the vehicle, and the energy absorption safety air bag 2 is arranged in a character-shaped structure. The two ends of the crash beam steel plate 5 are respectively installed and welded at the upper and lower positions on both sides of the inner panel 4 of the side door, that is, the structure and installation form of energy absorption in side collision are added to the side door. When the vehicle encounters side collision, the collision energy absorption air bag 2 is inflated due to the impact force, and fills between the inner and outer panels of the side door. The area that cannot be filled after inflation is supported by the collision protection foam 1. At the same time, the crash beam steel plate 5 is crushed and deformed as an energy absorption member during collision, thereby absorbing the collision energy, so as to protect the passengers in the vehicle. The mounting bracket is fixed on the inner panel of the side door, and is arranged in a character-shaped manner, so as to achieve the best collision energy absorption effect and protect the torso and knee and leg parts of the passengers.

[0025] As an optional embodiment, the mounting bracket 3 is provided in a plurality of forms. The mounting bracket 3 is installed in the side door of the vehicle in a character-shaped path, and the collision energy absorption air bag 2 is installed on the mounting bracket 3, so that the collision energy absorption air bag 2 is arranged in a character-shaped manner in the side door of the vehicle.

[0026] As an optional embodiment, the mounting bracket 3 is arranged on the inner panel 4 of the side door of the vehicle. The collision energy absorption air bag 2 is arranged on the inner panel 4 through the mounting bracket 3, so as to form a crash structure between the inner and outer panels of the side door.

[0027] As an optional embodiment, the mounting bracket 3 is connected with the inner panel 4 by welding or bolt connection. According to the structure of the inner panel of the side door of the vehicle, the mounting bracket 3 is connected with the inner panel 4 by welding or bolt connection, which is not limited.

[0028] As an optional implementation, the crash protection foam 1 is arranged on the outer panel of the automobile side door, the thickness of the crash protection foam is greater than 80 mm, and the width and length are both greater than 100 mm. The crash protection foam 1 is arranged on the outer panel of the automobile side door, corresponding to positions outside the U-shaped area of the crash energy absorption air bag 2, so that the automobile side door forms a crash protection area with a wide coverage.

[0029] As an optional implementation, the crash protection foam 1 is arranged on the outer panel of the automobile side door, the thickness of the crash protection foam is greater than 80 mm, and the width and length are both greater than 100 mm. The crash protection foam 1 is arranged on the outer panel of the automobile side door, corresponding to positions outside the U-shaped area of the crash energy absorption air bag 2, so that the automobile side door forms a crash protection area with a wide coverage.

[0030] As an optional implementation, the crash protection foam 1 is arranged on the outer panel of the automobile side door, the thickness of the crash protection foam is greater than 80 mm, and the width and length are both greater than 100 mm. The crash protection foam 1 is arranged on the outer panel of the automobile side door, corresponding to positions outside the U-shaped area of the crash energy absorption air bag 2, so that the automobile side door forms a crash protection area with a wide coverage. Figure 2 As an optional implementation, the crash protection foam 1 is arranged on the outer panel of the automobile side door, the thickness of the crash protection foam is greater than 80 mm, and the width and length are both greater than 100 mm. The crash protection foam 1 is arranged on the outer panel of the automobile side door, corresponding to positions outside the U-shaped area of the crash energy absorption air bag 2, so that the automobile side door forms a crash protection area with a wide coverage.

[0031] Based on the above technical solution, the implementation steps are as follows:

[0032] First, the mounting bracket is fixed on the side door inner panel, and the mounting mode can be welding or bolt connection, and the crash energy absorption air bag is mounted on the mounting bracket.

[0033] Secondly, the crash beam steel plate is fixed on the side door inner panel, and the mounting mode can be welding connection, the welding position is arranged on both sides of the side door inner panel, and the height difference in the Z direction needs to be greater than two-thirds of the height of the side door inner panel in the Z direction.

[0034] Then, the mounting patch is pasted on the crash protection foam, and then they are pasted on the side door outer panel together, wherein the crash protection foam needs to avoid the crash beam steel plate on the side door inner panel.

[0035] Finally, when the vehicle is subjected to a side collision, the crash energy absorption air bag is inflated under the impact force, fills between the side door inner and outer panels, and the area that cannot be filled after inflation is supported by the crash protection foam, and at the same time, the crash beam steel plate 5 is crushed and deformed as an energy absorption member during the collision, thereby absorbing the collision energy, so as to protect the passengers in the vehicle.

[0036] The present application is an energy absorption structure for an automobile side door and its arrangement form, which provides arrangement ideas, arrangement schemes and arrangement structures for side collision of the automobile, and provides all possibilities for definition of energy absorption objects, energy absorption structure, energy absorption space arrangement and energy absorption ideas for the side door inner and outer panels during side collision.

[0037] From the common technical knowledge, the present application can be realized by other embodiments without departing from the spirit or essential characteristics of the present application. Therefore, the above disclosed embodiments are merely illustrative in all aspects and are not the only ones. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

[0038] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced by the equivalent, without departing from the spirit and scope of the present application. Any modification or equivalent replacement without departing from the spirit and scope of the present application should be covered within the protection scope of the claims of the present application.

Claims

1. An energy absorbing structure for a side door of an automobile, characterized by, The application relates to a collision energy-absorbing air bag, a mounting bracket, a collision protection foam and a collision beam steel plate, wherein the collision energy-absorbing air bag is installed in a side door of a vehicle in a back-shaped mode through the mounting bracket; the collision protection foam is arranged in a surrounding area of the collision energy-absorbing air bag; and the collision beam steel plate is obliquely arranged on an inner plate of the side door of the vehicle. The mounting bracket is arranged on the inner plate of the side door of the vehicle. The mounting bracket is connected with the inner plate through welding or bolt connection. The collision protection foam is arranged on an outer plate of the side door of the vehicle, the thickness of the collision protection foam is greater than 80 mm, and the width and length of the collision protection foam are both greater than 100 mm. The collision protection foam is pasted on the outer plate through a mounting patch. The cross section of the collision beam steel plate is in a W type with a groove, and the depth of the groove is greater than 40 mm. The collision beam steel plate covers more than two-thirds of the height of the inner plate in the height direction of the side door of the vehicle. The mounting position of the collision protection foam is arranged outside the collision beam steel plate.

2. The energy absorbing structure for a side door of an automobile according to claim 1, characterized by, The mounting bracket is arranged in multiple.

3. The energy absorbing structure for a side door of an automobile according to any one of claims 1-2, characterized in that, The collision protection foam is arranged in multiple.

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