A bumper and vehicle

Abstract

The present application provides a bumper, comprising: a bumper body; a lower flange connected to the bumper body on one side and extending from the bumper body in a rear direction; and an extension part extending downward from the other side of the lower flange and formed with a plurality of variable support structures for abutting against a rear crash beam in a front direction, wherein each of the plurality of variable support structures selectively closely contacts the rear crash beam according to the structure of the rear crash beam. The bumper according to the present application can match with various designs of rear crash beams to support the bumper without additional special reinforcing components through the plurality of variable support structures, thereby saving the production manufacturing cost while ensuring the rigidity performance of the bumper.

Description

Technical Field

[0001] This invention relates to the field of vehicle components, and more particularly to a bumper and a vehicle, specifically to a bumper that matches different rear anti-collision beams through a variable support structure to ensure rigidity, and a vehicle including said bumper. Background Technology

[0002] The bumper assembly is a crucial component of a vehicle's body, comprising the bumper itself and the rear anti-collision beam located inside the bumper. Its rigidity directly impacts vehicle safety. When the vehicle is subjected to a low-speed collision or other external impact loads, the bumper assembly buffers and absorbs the impact energy, thus protecting the vehicle. It also plays a vital role in protecting occupants and pedestrians.

[0003] In the international community, each country has different requirements for the performance indicators of the rear bumper beam in the bumper assembly. Therefore, it is necessary to design various types of rear bumper beams to meet these requirements. For example, some rear bumper beams are designed with a relatively high main body, while in other designs, the main body of the rear bumper beam is relatively low.

[0004] In contrast, all countries have the same requirements for bumper rigidity. The rigidity of a bumper is typically assessed by applying a specified pressure to a specific area of ​​the bumper and measuring the amount of displacement that occurs under this pressure. A larger displacement indicates poorer rigidity, and vice versa.

[0005] To ensure the rigidity of the bumper, reinforcement is needed behind the bumper skin so that the bumper is supported by the rear bumper beam through the reinforcement components. There are generally two existing methods for implementing this reinforcement. The first method is as follows... Figure 1 As shown, an elastic reinforcing block 31 is provided between the bumper 10 and the rear bumper beam 21, which matches the front surface of the rear bumper beam 21 to support the bumper 10 through close contact with the rear bumper beam 21. The second method is as follows... Figure 2 As shown, this method achieves reinforcement by setting a buffer foam 32 that matches the rear bumper beam 22 between the bumper 10 and the rear bumper beam 22, thereby ensuring the rigidity of the bumper.

[0006] However, when rear bumper beams 21 and 22 of different designs are placed in the same position behind the bumper 10, such as Figure 3As shown, since the distances between the rear bumper beams 21 and 22 and the bumper are not the same, it is difficult to meet the support requirements between the various rear bumper beams 21 and 22 and the bumper through a universal reinforcement design, such as a universal elastic reinforcing block 31 or a universal foam, thus making it difficult to ensure the rigidity of the bumper. Designing dedicated reinforcement components for each type of rear bumper beam would also impact production costs. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] The first objective of this invention is to provide a bumper with a universal support component that can be matched with various rear bumper beams, in order to solve the technical problem that existing reinforcement components cannot be matched with various rear bumper beams, thus making it difficult to meet the rigidity performance requirements of the bumper.

[0009] A second objective of the present invention is to provide a vehicle comprising a bumper having a universal support component that can be matched with various rear bumper beams, thereby solving the technical problem that existing reinforcement components cannot be matched with various rear bumper beams, thus making it difficult to meet the rigidity performance requirements of the bumper.

[0010] (II) Technical Solution

[0011] To solve the above-mentioned technical problems, the present invention provides a bumper, comprising: a bumper body; a lower flange connected to the bumper body on one side and extending from the bumper body toward the rear of the vehicle; and an extension extending downward from the other side of the lower flange and having a plurality of variable support structures for abutting against a rear bumper beam toward the front of the vehicle, wherein each of the plurality of variable support structures selectively and closely contacts the rear bumper beam according to the structure of the rear bumper beam.

[0012] Optionally, the variable support structure includes: a through-hole portion, which extends through the extension portion to form a hollow structure protruding toward the front of the vehicle; and a support portion, which protrudes from the inner side of the through-hole portion toward the front of the vehicle to form and cover at least a portion of the hollow structure of the through-hole portion.

[0013] Optionally, the support further includes: two connecting portions, one end of each connecting portion extending from opposite positions on the inner side of the through hole towards the front of the vehicle; and a contact portion connecting the other ends of the two connecting portions.

[0014] Optionally, the contact portion is formed into a curved shape that protrudes towards the front of the vehicle.

[0015] Optionally, the through hole is formed in a cylindrical shape and the support portion is provided along the diameter of the through hole.

[0016] Optionally, the projected area of ​​the support portion in the through-hole portion is 1 / 3 of the area of ​​the through-hole portion.

[0017] Optionally, multiple variable support structures are arranged in at least two rows on the extension.

[0018] Optionally, the bumper also includes a pair of auxiliary support portions formed on both sides of the extension to assist in supporting the bumper by contacting the rear bumper beam.

[0019] Optionally, the bumper body, extension, and lower flange are integrally molded.

[0020] The present invention also provides a vehicle that includes a bumper according to an embodiment of the invention.

[0021] (III) Beneficial Effects

[0022] This invention provides a bumper comprising: a bumper body; a lower flange connected to one side of the bumper body and extending from the bumper body toward the rear of the vehicle; and an extension extending downward from the other side of the lower flange, having a plurality of variable support structures for abutting against a rear bumper beam toward the front of the vehicle, wherein each of the plurality of variable support structures selectively contacts the rear bumper beam according to the structure of the rear bumper beam. The bumper according to the invention, through its multiple variable support structures, can be matched with various rear bumper beams of different designs without the need for additional dedicated reinforcement components, thereby saving manufacturing costs while ensuring the rigidity performance of the bumper. Attached Figure Description

[0023] The above and other objects, features and other advantages of this disclosure will become clearer from the following detailed description, taken in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 This is a cross-sectional view in the vehicle width direction showing a method for supporting the bumper with an elastic reinforcing block by a rear bumper beam according to the prior art;

[0025] Figure 2 This is a cross-sectional view of the vehicle body from the upward direction, showing a method of supporting the bumper with cushioning foam according to the prior art for the rear anti-collision beam;

[0026] Figure 3 It is a cross-sectional view along the length of the vehicle body showing the positional relationship between different rear bumper beams and the existing bumper;

[0027] Figure 4 This is a schematic diagram of a bumper according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram showing the lower flange and extension according to an embodiment of the present invention;

[0029] Figure 6It is a cross-sectional view along the length of the vehicle body showing the positional relationship between different rear bumper beams and the bumper according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram illustrating a variable support structure according to an embodiment of the present invention;

[0031] In the diagram: 10, 11: Bumper; 111: Bumper body; 112: Lower flange; 113: Extension; 1131: Variable support structure; 1132: Through hole; 1133: Support; 1134: Connection; 1135: Contact; 114: Auxiliary support; 21, 22: Rear bumper beam; 31: Elastic reinforcing block; 32: Cushioning foam. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Figure 4 This is a schematic diagram of a bumper according to an embodiment of the present invention; Figure 5 This is a schematic diagram showing the lower flange and extension according to an embodiment of the present invention; Figure 6 This is a cross-sectional view along the length of the vehicle body showing the positional relationship between different rear bumper beams and the bumper according to an embodiment of the present invention.

[0035] An embodiment of the present invention provides a bumper 11, comprising: a bumper body 111; a lower flange 112 connected to one side of the bumper body 111 and extending from the bumper body 111 toward the rear of the vehicle; and an extension 113 extending downward from the other side of the lower flange 112 and having a plurality of variable support structures 1131 for abutting against a rear bumper beam toward the front of the vehicle, wherein each of the plurality of variable support structures 1131 selectively and closely contacts the rear bumper beam according to the structure of the rear bumper beam.

[0036] Specifically, one side of the lower flange 112 protrudes from the bottom of the bumper body 111 toward the rear of the vehicle, and the other side of the lower flange 112, i.e., the extended end, extends downward to form an extension 113. Optionally, the lower flange 112 may extend perpendicularly to the bumper body 111 toward the rear of the vehicle, and the extension 113 may extend downward perpendicularly to the plane formed by the extension 113, i.e., the plane formed by the extension 113 may be parallel to the plane formed by the bumper body 111.

[0037] Furthermore, multiple variable support structures 1131 can be formed on the extension 113. These multiple variable support structures 1131 can selectively abut against the rear anti-collision beam located inside the bumper 11, thereby supporting the bumper 11. Since the multiple variable support structures 1131 are used to match various anti-collision beam designs, each of the multiple variable support structures 1131 can have a different size and shape. In the embodiments of the present invention, the multiple variable support structures 1131 provided are all the same in shape and size, and the multiple variable support structures 1131 are arranged in two parallel rows on the extension 113; however, the present invention is not limited to this.

[0038] In the bumper 11 according to an embodiment of the present invention, two rows of multiple variable support structures 1131 are formed on the extension 113. The upper row of multiple variable support structures 1131 can be in close contact with the rear bumper beam, supporting the bumper 11 and ensuring its rigidity. The lower row of multiple variable support structures 1131 can also be in close contact with the rear bumper beam, supporting the bumper 11 and ensuring its rigidity. Therefore, when using the bumper 11 according to an embodiment of the present invention, no additional reinforcing components are needed; the multiple variable support structures 1131 on the extension 113 can support the bumper 11, thus ensuring that the bumper 11 meets its rigidity requirements.

[0039] More specifically, each of the plurality of variable support structures 1131 according to embodiments of the present invention may include a through hole portion 1132 and a support portion 1133 protruding from the through hole portion 1132 in the direction of the front of the vehicle.

[0040] The through-hole portion 1132 extends through the extension portion 113 on its surface, forming a hollow structure protruding towards the front of the vehicle. Its projection shape on the extension portion 113 can be circular, and correspondingly, the space formed by it extending through the extension portion 113 can be cylindrical. In this case, the support portion is provided along the diameter of the through-hole portion. However, the present invention is not limited to this. The projection shape of the through-hole portion 1132 on the extension portion 113 can be square, etc., and correspondingly, the space formed by it extending through the extension portion 113 can be cuboid. The support portion is provided along the diagonal or one side length of the through-hole portion. Furthermore, according to an embodiment of the present invention, the support portion 1133 can protrude from the inner surface of the through-hole portion 1132 towards the front of the vehicle, forming and covering at least a portion of the hollow structure of the through-hole portion. In addition, the extension 113 may be formed by protruding from the outer surface of the extension 113 through the through hole 1132 towards the front of the vehicle, or it may be formed by protruding from the inner surface of the extension 113 near the through hole 1132 without passing through the through hole 1132 towards the front of the vehicle.

[0041] Furthermore, the support portion 1133 may further include two connecting portions 1134 and a contact portion 1135, wherein one end of each connecting portion 1134 may be connected to an opposing position on the inner surface of the through hole portion 1132 and extend towards the front of the vehicle. Optionally, one end of each connecting portion 1134 may also be connected to an opposing position on the outer surface of the extension portion 113 and extend towards the front of the vehicle through the through hole portion 1132, or connected to an opposing position on the inner surface of the extension portion 113 near the through hole portion 1132 and extending towards the front of the vehicle without passing through the through hole portion 1132. The contact portion 1135 is connected between the other ends of the two connecting portions 1134, thereby connecting the two connecting portions 1134 and the contact portion 1135 into one unit. Therefore, preferably, the widths of the two connecting portions 1134 and the contact portion 1135 are the same. The contact portion 1135 is used to closely abut against the rear bumper beam, and the rear bumper beam can support the bumper 11 by closely abutting against multiple contact portions 1135. Optionally, the contact portion 1135 can be formed into a curved shape protruding towards the front of the vehicle.

[0042] In order for various rear bumper beams of different designs to support the bumper 11 through multiple variable support structures 1131, the support portion 1133 that closely abuts against the rear bumper beam, i.e., the contact portion 1135, and the two connecting portions 1134 connected to the contact portion 1135 should be deformable under a certain stress. If the width of the two connecting parts 1134 and the contact part 1135 is too wide, the rigidity of the support part 1133 will be too high, which may cause difficulties during assembly. That is, the anti-collision beam and the bumper 11 may be damaged due to the contact between the support part 1133 and the anti-collision beam. If the width of the two connecting parts 1134 and the contact part 1135 is too narrow, the rigidity of the support part 1133 will be too low. During installation, the support part 1133 may be excessively deformed due to the influence of the rear anti-collision beam, and it may not be able to play a good role in supporting the bumper 11. Therefore, in order to balance the deformability and rigidity of the deformable support structure 1131, it is preferable to control the width of the two connecting parts 1134 and the contact part 1135 so that the projected area of ​​the support part 1133 in the through hole 1132 is 1 / 3 of the area of ​​the through hole 1132.

[0043] Optionally, the bumper 11 according to an embodiment of the present invention may further include a pair of auxiliary support portions 114, which also extend from the lower part of the bumper body 111 and are respectively located on the left and right sides of the extension portion 113. Each auxiliary support portion 114 is in close contact with the rear anti-collision beam, that is, each auxiliary support portion 114 is equivalent to an additional variable support structure 1131. Through the multiple variable support structures 1131 on the extension portion 113 and the close contact between the pair of auxiliary support portions 114 on both sides of the extension portion 113 and the rear anti-collision beam, the support for the bumper 11 can be achieved more evenly and effectively.

[0044] In addition, according to embodiments of the present invention, the bumper body 111, extension 113, and lower flange 112 are integrally formed, or the bumper body 111, extension 113, lower flange 112, and a pair of auxiliary support parts 114 are integrally formed, so that they can be directly manufactured in the bumper 11 production line using the same process as the existing bumper 11, without the need for additional process steps.

[0045] On the other hand, the present invention also provides a vehicle that includes a bumper according to an embodiment of the present invention, which can be matched with various rear bumper beams of different designs without the need for additional reinforcement components, thereby providing support for the bumper and ensuring its rigidity.

[0046] In summary, the present invention provides a bumper comprising: a bumper body; a lower flange connected to the bumper body on one side and extending from the bumper body toward the rear of the vehicle; and an extension extending downward from the other side of the lower flange, and having a plurality of variable support structures for abutting against a rear bumper beam toward the front of the vehicle, wherein each of the plurality of variable support structures selectively and closely contacts the rear bumper beam according to the structure of the rear bumper beam. The bumper according to the present invention, through its multiple variable support structures, can be matched with various rear bumper beams of different designs to support the bumper without the need for additional dedicated reinforcement components, thereby saving manufacturing costs while ensuring the rigidity performance of the bumper.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bumper, characterized in that, include: The bumper itself; The lower flange is connected to the bumper body on one side and extends from the bumper body toward the rear of the vehicle. as well as An extension extends downward from the other side of the lower flange and has multiple variable support structures for abutting against the rear bumper beam in the direction of the vehicle's front. Each of the plurality of variable support structures is selectively in close contact with the rear bumper beam according to the structure of the rear bumper beam, and the variable support structure includes: a through-hole portion that passes through the extension portion to form a hollow structure protruding toward the front of the vehicle; and a support portion that protrudes from the inner side of the through-hole portion toward the front of the vehicle to form and cover at least a portion of the hollow structure of the through-hole portion.

2. The bumper according to claim 1, characterized in that, The support portion further includes: Two connecting portions, one end of each connecting portion extending from opposite positions on the inner side surface of the through hole towards the front of the vehicle; and A contact portion is connected between the other ends of the two connecting portions.

3. The bumper according to claim 2, characterized in that, The contact portion is formed in a curved shape that protrudes towards the front of the vehicle.

4. The bumper according to claim 3, characterized in that, The through-hole portion is formed in a cylindrical shape and the support portion is provided along the diameter of the through-hole portion.

5. The bumper according to claim 4, characterized in that, The projected area of ​​the support portion in the through hole portion is 1 / 3 of the area of ​​the through hole portion.

6. The bumper according to claim 1, characterized in that, The plurality of the variable support structures are arranged in at least two rows, one above the other, on the extension.

7. The bumper according to claim 1, characterized in that, The bumper also includes: A pair of auxiliary support portions are formed on both sides of the extension to assist in supporting the bumper by contacting the rear anti-collision beam.

8. The bumper according to claim 1, characterized in that, The bumper body, the extension, and the lower flange are integrally formed.

9. A vehicle, characterized in that, Including the bumper according to any one of claims 1-8.

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