Patent Description:
At present, with the continuous development of vehicle technology, people are increasingly demanding the safety performance of vehicles. Due to the high speed of a vehicle, a considerable impact force will be generated when the vehicle crashes, hence the crash function of the vehicle plays an essential role in the safety of the vehicle.

A crash beam of a vehicle is an apparatus employed to reduce the crash energy absorbed by the vehicle when it is crashed. As shown in <FIG>, the traditional crash beam of vehicle is usually composed of a crash beam body <NUM> and a crash box <NUM>, both of which are able to effectively absorb the crash energy when the vehicle is involved in a low-speed or high-speed crash, thereby producing a protective effect on the vehicle.

When the vehicle is crashed, the energy is firstly transferred to the outermost crash beam body <NUM>, and then to the crash box <NUM>, such that the crash energy is absorbed through the collapse and destruction of the crash box <NUM>. However, only by virtue of the crash beam body <NUM> and the crash box <NUM>, ideal crash effects cannot be exerted in the existing vehicles during both low-speed and high-speed crashes. In order to ensure that the crash beam possess excellent crash performance, the crash beam needs to be reinforced globally, whereas such reinforcement will lead to an increase in the manufacturing cost of the crash beam.

A first objective of the present application is to provide a crash beam having improved crash performance through a beam support, so as to solve the problem of high cost caused by redesigning the entire crash beam when reinforcing the crash beam.

A second objective of the present application is to provide a vehicle including a crash beam having improved crash performance through a beam support, so as to solve the problem of high cost caused by redesigning the entire crash beam when reinforcing the crash beam.

From the prior art <CIT>, <CIT> and <CIT> are known, where the document <CIT> discloses a crash beam according to the preamble of claim <NUM>.

In order to solve the above-mentioned technical problems, the present application provides an crash beam, including: an crash beam body, extending along a width direction of a vehicle; an crash box, formed by extending inwardly along a longitudinal direction of the vehicle at both ends of the crash beam body and approximately perpendicular to the crash beam body; and a beam support, disposed below a connecting part of the crash beam body and the crash box and including a first part and a second part perpendicular to each other, wherein an end of the first part is connected to the crash box, the second part is connected to the crash beam body, and another end of the first end and another end of the second are connected to each other.

The first part includes a first setting surface contacting and connecting to a lower surface of the crash box, and a first connecting surface extending downward from both ends of the first setting surface and perpendicular to the first setting surface and the second part includes a second setting surface contacting and connecting to an inner surface of the crash beam body, and a second connecting surface extending inwardly from both ends of the second setting surface and perpendicular to the second setting surface wherein
the first connecting surface and the second connecting surface are connected to each other, and a weakening cut is formed at a position where the first connecting surface is connected to the second connecting surface.

In an embodiment, a first reinforcing rib is formed at a position where the first setting surface is connected to the first connecting surface.

In an embodiment, a second reinforcing rib is formed at a position where the second setting surface is connected to the second connecting surface.

In an embodiment, the first setting surface is connected to the lower surface of the crash box by bolts.

In an embodiment, the second setting surface is connected to the inner surface of the crash beam body by bolts.

In an embodiment, the first part and the second part are integrally formed.

The present application further provides a vehicle, including the crash beam according to embodiments of the present application.

The present application provides a crash beam and a vehicle, the crash beam including: a crash beam body, extending along a width direction of a vehicle; a crash box, formed by extending inwardly along a longitudinal direction of the vehicle at both ends of the crash beam body and approximately perpendicular to the crash beam body; and a beam support, disposed below a connecting part of the crash beam body and the crash box and including a first part and a second part perpendicular to each other, wherein the first part and the second part have ends connected to the crash box and the crash beam body, respectively, and another ends connected to each other. With the crash beam according to the present application, the crash performance can be enhanced in both low-speed and high-speed crashes, and the crash beam does not need to be reinforced globally, so that the manufacturing cost can be saved while ensuring safety.

The above-mentioned and other objectives, features and other advantages of the present disclosure will be more clearly understood from the following detailed description, taken in conjunction with the accompanying drawings, wherein:.

<NUM> and <NUM>: crash beam body; <NUM> and <NUM>: crash box; <NUM>: beam support; <NUM>: first part; <NUM>: first setting surface; <NUM>: first connecting surface; <NUM>: first reinforcing rib; <NUM>: second part; <NUM>: second setting surface; <NUM>: second connecting surface; <NUM>: second reinforcing rib; <NUM>: weakening cut.

In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application according to the appended claims.

In the description of the present application, it should be noted that, the orientation or positional relationship indicated by terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and description simplification, rather than to indicate or imply that the device or element referred to should have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first", "second", "third" and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

<FIG> is a schematic diagram showing a crash beam according to an embodiment of the present application; <FIG> is a schematic diagram showing a connection of a beam support of a crash beam according to an embodiment of the present application; and <FIG> is a schematic diagram showing a beam support of a crash beam according to an embodiment of the present application.

According to the present application, provided is a crash beam, including a crash beam body <NUM>, a crash box <NUM> and a beam support <NUM>. Specifically, the crash beam body <NUM> extends along a width direction of a vehicle, and acts as a first buffer when the vehicle crashes. The crash boxes <NUM> are disposed at left and right ends of the crash beam body <NUM>, and respectively extend inwardly along a longitudinal direction of the vehicle and approximately perpendicular to the crash beam body <NUM>, namely be formed by extending along a length of the vehicle (X direction) toward an interior of the vehicle. The crash energy received by the crash beam body <NUM> is transferred to the crash boxes <NUM> at the left and right ends thereof, so that the crash boxes <NUM> are collapsed and destroyed due to energy absorption, thereby further offsetting the crash energy.

Further, the crash beam is provided with a beam support <NUM> which is disposed below a connecting part of the crash beam body <NUM> and the crash boxes <NUM>, and respectively connected with the crash beam body <NUM> and the crash boxes <NUM> to form an "L" shape. Specifically, each beam support <NUM> includes a first part <NUM> and a second part <NUM> perpendicular to each other, wherein the first part <NUM> and the second part <NUM> have ends connected to a lower surface of the crash box <NUM> and an inner surface of the crash beam body <NUM>, respectively, and another ends connected to each other, so that the beam support <NUM> is formed into an "L" shape.

Further, the beam support <NUM> may be a structure formed by bending a sheet of metal material into a "Π" shape. The first part <NUM> includes a first setting surface <NUM> contacting and connecting with a lower surface of the crash box <NUM>, and a first connecting surface <NUM> extending downward from both ends of the first setting surface <NUM> and perpendicular to the first setting surface <NUM>.

The second part <NUM> includes a second setting surface <NUM> contacting and connecting to an inner surface of the crash beam body <NUM>, and a second connecting surface <NUM> extending inwardly from both ends of the second setting surface <NUM> (i.e., along an interior direction of the vehicle) and perpendicular to the second setting surface <NUM>.

The other end of the first connecting surface <NUM> and the other end of the second connecting surface <NUM> are connected to each other, so that the beam support <NUM> in the X direction has an "L" shaped cross-section.

Further, a weakening cut <NUM> is formed at a position where the first connecting surface <NUM> and the second connecting surface <NUM> are connected to each other. Specifically, an outer edge of the first connecting surface <NUM> and an upper edge of the second connecting surface <NUM> are connected to each other, an inner edge of the first connecting surface <NUM> and a lower edge of the second connecting surface <NUM> are connected to each other. The weakening cut <NUM> is formed at a connection between the outer edge of the first connecting surface <NUM> and the upper edge of the second connecting surface <NUM>. The weakening cut <NUM> according to an embodiment of the present application may be a circular arc-shaped cut formed by being depressed downward.

With the crash beam according to the embodiments of the present application, when the vehicle crashes at a low speed, the crash beam can be partially strengthened through the structure of beam support <NUM>, thereby improving the crash performance of the crash beam to ensure the safety of the crash beam. For the crash of the vehicle at high speed, the weakening cut <NUM> on the beam support <NUM> can facilitate absorbing the crash energy; specifically, by means of the weakening cut <NUM>, the beam support <NUM> can be collapsed and destroyed in a better way. Therefore, in addition to the crash box <NUM>, the beam support <NUM> can also absorb part of the crash energy. On the contrary, provided that no weakening cut <NUM> is provided, the beam support <NUM> will not easily collapse in the event of a crash, in that the lower part of the crash beam is relatively hard, so that the vehicle tends to rotate with the position of the beam support <NUM> as a fulcrum, which makes the crash box <NUM> less likely to collapse and the crash beam cannot absorb the crash energy well.

Further, in order to ensure the reinforcement function of the beam support <NUM> in the case of a low-speed crash, the beam support <NUM> according to an embodiment of the present application may also be provided with a reinforcing structure. As an illustration, a first reinforcing rib <NUM> may be formed at a connection between the first setting surface <NUM> and the first connecting surface <NUM>, and a second reinforcing rib <NUM> may be formed at a connection between the second setting surface <NUM> and the second connecting surface <NUM>; the first reinforcing rib <NUM> and the second reinforcing rib <NUM> can be provided in multiple or partially according to actual strength requirements. The first reinforcing rib <NUM> and/or the second reinforcing rib <NUM> may be a structure formed inwardly from the surface of the connection.

The first setting surface <NUM> and the lower surface of the crash box <NUM> may be provided with mounting holes corresponding to each other, so as to enable the connection of the first part <NUM> onto the crash box <NUM> by means of bolts and the like; the second setting surface <NUM> and the inner surface of the crash beam body <NUM> may be provided with mounting holes corresponding to each other, so as to enable the connection of the second part <NUM> onto the crash beam body <NUM> by means of bolts and the like. In addition, the first part <NUM> and the second part <NUM> may be integrally formed into the beam support <NUM>.

In another aspect, the present application further provides a vehicle including a crash beam according to embodiments of the present application.

Claim 1:
A crash beam, comprising:
an crash beam body (<NUM>,<NUM>), extending along a width direction of a vehicle;
an crash box (<NUM>,<NUM>), formed by extending inwardly along a longitudinal direction of the vehicle at both ends of the crash beam body (<NUM>,<NUM>) and approximately perpendicular to the crash beam body (<NUM>,<NUM>); and
a beam support (<NUM>), disposed below a connecting part of the crash beam body (<NUM>,<NUM>) and the crash box (<NUM>,<NUM>), and comprising a first part (<NUM>) and a second part (<NUM>) perpendicular to each other, wherein an end of the first part (<NUM>) is connected to the crash box (<NUM>,<NUM>), an end of the second part (<NUM>) is connected to the crash beam body (<NUM>,<NUM>), and another end of the first part (<NUM>) and another end of the second part (<NUM>) are connected to each other wherein
the first part (<NUM>) comprises a first setting surface (<NUM>) contacting and connecting to a lower surface of the crash box (<NUM>,<NUM>), and a first connecting surface (<NUM>) extending downward from both ends of the first setting surface (<NUM>) and perpendicular to the first setting surface (<NUM>) and
the second part (<NUM>) comprises a second setting surface (<NUM>) contacting and connecting to an inner surface of the crash beam body (<NUM>,<NUM>), and a second connecting surface (<NUM>) extending inwardly from both ends of the second setting surface (<NUM>) and perpendicular to the second setting surface (<NUM>).
characterized in that,
the first connecting surface (<NUM>) and the second connecting surface (<NUM>) are connected to each other, and a weakening cut (<NUM>) is formed at a position where the first connecting surface (<NUM>) is connected to the second connecting surface (<NUM>).