Automobile bumper and machining method thereof

Abstract

The invention relates to an automobile bumper and a machining method thereof. The automobile bumper comprises a bumper main body and a buffer assembly, the bumper main body is made of an elastic deformable material, a closed buffer cavity is formed in the bumper main body, and an air tap communicated with the buffer cavity is arranged on the bumper main body. The buffering assembly is arranged in the buffering cavity, and the buffering assembly can elastically deform in the first direction when pressed. According to the automobile bumper provided by the embodiment of the invention, the bumper main body is made of the elastic deformable material, and the buffer cavity of the bumper main body is inflated through the air tap, so that the air bag state is achieved. And when the bumper is impacted, the bumper main body can be quickly deformed to release impact external force, so that rigid collision of hard collision is avoided. And the buffer assembly is arranged in the bumper main body, so that the buffer effect is further improved. When the bumper main body deforms due to collision, the bumper main body is elastic, so that the bumper main body is easy to rebound and recover after being collided, and the maintenance and replacement frequency can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the automobile technical field, in particular to an automobile bumper and a processing method thereof. BACKGROUND

[0002] The automobile bumper is widely used in various sedans, buses and trucks, and can absorb the impact force when a collision occurs during driving, especially when a collision accident cannot be avoided, it can instantaneously reduce the impact force, thereby effectively reducing economic losses and casualties.

[0003] However, the traditional automobile bumper is usually made of metal or rigid plastic, which has high hardness. When a collision occurs, the hard components are easily damaged, and the impact force cannot be effectively buffered, which is prone to crushing and damage. The protection for the collided person or object is limited, and even more serious injuries may occur. SUMMARY

[0004] Therefore, it is necessary to provide an automobile bumper and a processing method thereof to improve the buffering response speed and buffering effect.

[0005] In a first aspect, the present application provides an automobile bumper, which comprises:

[0006] A bumper body made of an elastically deformable material, a closed buffer cavity is arranged in the bumper body, and a gas nozzle is arranged on the bumper body and communicates with the buffer cavity.

[0007] A buffer assembly arranged in the buffer cavity, which can elastically deform in a first direction when subjected to pressure.

[0008] In other embodiments, the buffer assembly is provided with a plurality of buffer assemblies arranged in a second direction; wherein the second direction forms an angle with the first direction.

[0009] In other embodiments, the buffer assembly comprises:

[0010] An elastic member capable of elastically deforming in the first direction;

[0011] A connecting member, one end of the connecting member is connected to the elastic member, and the other end is inserted and fixed in the cavity wall of the buffer cavity.

[0012] In other embodiments, the automobile bumper further comprises:

[0013] An electric control circuit at least partially arranged in the buffer cavity; before the buffer cavity is subjected to pressure, the electric control circuit is in an open state, and when the buffer cavity is subjected to pressure, the electric control circuit is turned on.

[0014] In some other embodiments, the buffer cavity has a first cavity wall and a second cavity wall along a first direction; the buffer assembly is arranged on the first cavity wall and spaced apart from the second cavity wall;

[0015] The electric control circuit has a break point, a first end of the break point is connected to the buffer assembly, a second end of the break point is connected to the second cavity wall, and the second end at least partially overlaps the buffer assembly along the first direction; when the bumper body is extruded and deformed along the first direction, the buffer assembly is electrically connected to the second end.

[0016] In some other embodiments, the electric control circuit comprises:

[0017] A first wire is connected to the buffer assembly, one end of the first wire is the first end, and the end portion away from the first end penetrates the cavity wall of the buffer cavity;

[0018] A second wire is connected to the second cavity wall; one end of the second wire is the second end, and the end portion away from the second end penetrates the cavity wall of the buffer cavity.

[0019] In some other embodiments, the electric control circuit further comprises:

[0020] A third wire is connected to the second wire and arranged at an angle with the second wire; along the first direction, the third wire at least partially overlaps the buffer assembly.

[0021] In some other embodiments, the third wire and the second wire are configured as an integrated structure.

[0022] In a second aspect, the application further provides a processing method of an automobile bumper, the processing method of the automobile bumper comprising:

[0023] Preparation of a body semi-finished product, forming a cavity inside the body semi-finished product and an opening communicating with the cavity;

[0024] Placing a buffer assembly into the cavity from the opening and inserting and fixing the buffer assembly on the cavity wall of the cavity;

[0025] Vulcanization treatment of the body semi-finished product, melting and plugging the opening of the body semi-finished product to form a closed buffer cavity, and processing a bumper body.

[0026] In some other embodiments, the automobile bumper further comprises an electric control circuit; the processing method of the automobile bumper further comprises:

[0027] Before the step of vulcanizing the main semi-finished product to melt and seal the opening to form a sealed buffer cavity and process the bumper body, the electrical control circuit is connected to the cavity wall of the cavity through the opening and led out to the outside of the cavity.

[0028] The aforementioned car bumper utilizes an elastic, deformable material for its main body, inflating its buffer chamber via air valves to achieve an airbag-like effect. Upon impact, the bumper body deforms rapidly to release the impact force, preventing a rigid, head-on collision. The buffering effect is further enhanced by incorporating a cushioning component within the bumper body. After deforming upon impact, the bumper body, being elastic, readily rebounds and returns to its original shape, reducing the frequency of repairs and replacements compared to a rigid bumper body. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a car bumper provided in one embodiment of this application from one viewpoint.

[0030] Figure 2 This is a schematic diagram of the internal structure of the bumper body provided in one embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the structure of a buffer component provided in one embodiment of this application;

[0032] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0033] Figure 5 This is a schematic diagram of the structure of a car bumper provided in one embodiment of this application from another perspective;

[0034] Figure 6 This is a schematic diagram of the disassembly structure of a car bumper provided in one embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Bumper body; 10. Buffer cavity; 101. First cavity wall; 111. Mounting protrusion; 102. Second cavity wall; 11. Air nozzle; 12. Ventilation slot; 13. License plate fixing screw hole;

[0037] 2. Buffer assembly; 21. Elastic element; 22. Connector;

[0038] 3. Electrical control circuit; 31. First wire; 311. First end; 32. Second wire; 321. Second end; 33. Third wire; 34. First connecting device 34; 35. Second connecting device 35;

[0039] 4, back plate; 41, back plate main body; 411, air nozzle through hole; 412, first wire through hole; 413, second wire through hole; 42, first connecting portion; 43, second connecting portion; 44, fixing ring. DETAILED DESCRIPTION

[0040] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the spirit of the present application, and it is intended that the present application cover all modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

[0041] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0043] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figure 1 and Figure 2 , Figure 1 This illustration shows a schematic diagram of the structure of a car bumper provided in one embodiment of the present application from one viewpoint; Figure 2 This illustration shows a schematic diagram of the internal structure of a bumper body 1 provided in one embodiment of this application. This embodiment of the application provides a car bumper, which includes a bumper body 1 and a buffer assembly 2. The bumper body 1 is made of an elastically deformable material, and a sealed buffer cavity 10 is provided inside the bumper body 1. An air nozzle 11 communicating with the buffer cavity 10 is provided on the bumper body 1. The buffer assembly 2 is disposed inside the buffer cavity 10, and the buffer assembly 2 can elastically deform along a first direction when compressed. Here, the first direction generally refers to the direction of travel of the vehicle on which it is installed, specifically as follows... Figure 1 The front and back directions are shown.

[0047] The car bumper provided in this embodiment uses an elastic, deformable material for the bumper body 1 and inflates it into its buffer cavity 10 via an air nozzle 11 to achieve an airbag-like state. Upon impact, the bumper body 1 can quickly deform to release the impact force, avoiding a rigid, head-on collision. The buffering effect is further improved by incorporating a buffer component 2 within the bumper body 1. When the bumper body 1 deforms upon impact, its elasticity allows it to easily rebound and return to its original shape, reducing the frequency of maintenance and replacement compared to a rigid bumper body.

[0048] For example, the bumper body 1 can be made of elastic and deformable materials such as rubber, plastic, or silicone. For instance, it can be a composite of various polymer materials such as nitrile rubber, polyvinyl chloride, and ethylene propylene diene monomer (EPDM), which is more conducive to enhancing mechanical properties, durability, weather resistance, and tear resistance.

[0049] In some embodiments, multiple buffer components 2 are provided, and the multiple buffer components 2 are spaced apart along the second direction; wherein, the second direction forms an angle with the first direction, and the second direction is specifically as follows: Figure 1 The left and right directions shown can also be at a certain angle to the left and right directions, so that the multiple buffer components 2 can achieve a larger buffering range in the width direction of the car.

[0050] Combination Figure 3 As shown, Figure 3 A schematic diagram of the structure of a buffer assembly 2 provided in one embodiment of this application is shown. In some embodiments, the buffer assembly 2 includes an elastic element 21 and a connecting element 22. The elastic element 21 is capable of elastic deformation in the front-back direction. One end of the connecting element 22 is connected to the elastic element 21, and the other end is inserted and fixed into the cavity wall of the buffer cavity 10. The elastic element 21 provides a buffering effect, and by providing the connecting element 22, the elastic element 21 is firmly installed in the buffer cavity 10 to stably provide a buffering effect.

[0051] Optionally, multiple connectors 22 are provided, and the multiple connectors 22 are evenly spaced at one end of the elastic member 21 to improve the firmness of the installation of the elastic member 21.

[0052] Specifically, the elastic element 21 and the connecting element 22 can be connected by welding. First, the elastic element 21 and the connecting element 22 are connected, and then the connecting element 22 is inserted into the bumper body 1 for fixation.

[0053] In this embodiment, the elastic element 21 is a spring, and the connecting element 22 can be a connecting post. The spring and the connecting post can be made of metal so that they can be connected by welding. Welding is a quick processing method that can maintain high connection strength.

[0054] It is understood that in some other embodiments, the elastic element 21 may also be made of elastic materials such as rubber pads or silicone pads, which can be elastically deformed and provide a cushioning effect. In this case, the elastic element 21 is generally processed by injection molding, and the connector 22 can be molded integrally with the elastic element 21 as an insert.

[0055] Optionally, the connector 22 may be made of bolts or screws to give the outer peripheral surface of the connector 22 a certain roughness, so as to increase the friction between it and the bumper body 1, thereby improving the insertion firmness of the connector 22 on the bumper body 1.

[0056] Specifically, the depth to which the connector 22 is inserted into the wall of the buffer cavity 10 is less than the thickness of the wall of the buffer cavity 10, so as to avoid puncturing the wall of the buffer cavity 10 and thus maintain the sealing of the buffer cavity 10.

[0057] Optionally, the buffer cavity 10 has a mounting protrusion 111 on its cavity wall, and the connector 22 is inserted into the mounting protrusion 111. By providing the mounting protrusion 111, the thickness of the cavity wall of the buffer cavity 10 is increased, so as to increase the insertion depth of the connector 22, thereby improving the installation firmness of the connector 22 on the cavity wall of the buffer cavity 10.

[0058] In some embodiments, the shape of the bumper body 1 is determined according to the specific installation space on the vehicle. The bumper body 1 is made of rubber and is processed through molding, vulcanization and other processes. Through the design of the vulcanization mold, it is easy to process into various shapes, making the structural design more flexible.

[0059] For example, the bottom surface of the bumper body 1 is provided with a ventilation slot 12, which allows the car to be ventilated and cooled when the bumper is mounted on the car. Of course, for pure electric vehicles, the air-cooling requirements are not high, so the ventilation slot 12 may not be provided.

[0060] In some embodiments, a plurality of license plate fixing screw holes 13 are provided on the front surface of the bumper body 1 to fix the license plate. The license plate fixing screw holes 13 are formed by inserting a nut into the bumper body 1, and the threaded hole in the nut forms the aforementioned license plate fixing screw holes 13. The length of the nut is generally less than the thickness of the bumper body 1 at the location to prevent the nut from puncturing and damaging the sealing of the buffer cavity 10.

[0061] Please see Figure 2 In some embodiments, the car bumper also includes an electrical control circuit 3, at least a portion of which is disposed within the buffer cavity 10. Before the buffer cavity 10 is compressed, the electrical control circuit 3 remains open; when the buffer cavity 10 is compressed, the electrical control circuit 3 is connected. By providing the electrical control circuit 3 within the buffer cavity 10, it can be connected to an external control unit such as an automatic braking or alarm unit. When the car bumper collides, the electrical control circuit 3 is connected to automatically activate the control unit, thereby automatically initiating braking or alarm activation.

[0062] In some embodiments, the buffer cavity 10 has a first cavity wall 101 and a second cavity wall 102 along the front-rear direction; the buffer assembly 2 is disposed on the first cavity wall 101 and spaced apart from the second cavity wall 102. The electrical control circuit 3 has a breakpoint, the first end 311 of which is connected to the buffer assembly 2, and the second end 321 of which is connected to the second cavity wall 102 and at least partially overlaps with the buffer assembly 2 along the front-rear direction; when the bumper body 1 is deformed by compression along the front-rear direction, the buffer assembly 2 is electrically connected to the second end 321. The first cavity wall 101 may be the rear cavity wall of the buffer cavity 10, and the second cavity wall 102 may be the front cavity wall of the buffer cavity 10.

[0063] When the car bumper is not compressed, the buffer assembly 2 maintains a distance from the second end 321 of the electronic control circuit 3, so that the electronic control circuit 3 remains in an open circuit state. When the car bumper is hit, the bumper body 1 is compressed, the first cavity wall 101 and the second cavity wall 102 approach each other, and the buffer assembly 2 presses against the second cavity wall 102, thereby contacting the second end 321 of the electronic control circuit 3, so that the electronic control circuit 3 is turned on.

[0064] Specifically, the buffer component 2 is made of conductive material. The first end 311 of the electrical control circuit 3 is connected to the buffer component 2, so that the second end 312 of the electrical control circuit 3 can be electrically connected through the buffer component 2.

[0065] In some embodiments, the electrical control circuit 3 includes a first wire 31 and a second wire 32. The first wire 31 is connected to the buffer assembly 2. One end of the first wire 31 is a first end 311, and the end away from the first end 311 passes through the cavity wall of the buffer cavity 10 and is connected to an external power source. The second wire 32 is connected to the second cavity wall 102. One end of the second wire 32 is a second end 321, and the end away from the second end 321 passes through the cavity wall of the buffer cavity 10 and is connected to an external control unit. Specifically, when multiple buffer assemblies 2 are provided, the first wire 31 connects multiple buffer assemblies 2 simultaneously to connect them in series. When any buffer assembly 2 comes into contact with the second wire 32, the first wire 31 and the second wire 32 are connected, thereby activating the automatic control of the vehicle.

[0066] The first wire 31 and the second wire 32 can be fixed to the cavity wall of the buffer cavity 10 by thermosetting or glue.

[0067] See Figure 4 , Figure 4 It shows Figure 2Enlarged structural diagram at point A. Optionally, the end of the first wire 31 furthest from the first end 311 is connected to a first connecting device 34, which passes through the wall of the buffer cavity 10 to connect to a power source outside the buffer cavity 10. Similarly, the end of the second wire 32 furthest from the second end 312 is also connected to a second connecting device 35, which passes through the wall of the buffer cavity 10 to connect to a control unit outside the buffer cavity 10. The first connecting device 34 and the second connecting device 35 can be connected using bolts, screws, or other wire connection structures.

[0068] In some embodiments, the electrical control circuit 3 further includes a third wire 33, which is connected to the second wire 32 and is arranged at an angle to the second wire 32; along the front-rear direction, the third wire 33 at least partially overlaps with the buffer assembly 2. By providing the third wire 33, the relative area between the electrical control circuit 3 and the buffer assembly 2 is increased, thereby improving the contact reliability between the electrical control circuit 3 and the buffer assembly 2 in the event of a collision.

[0069] Optionally, the third wire 33 extends vertically to form a cross shape with the second wire 32, thereby increasing the contact range between the electrical control circuit 3 and the buffer assembly 2. Even if the buffer assembly 2 is skewed to a certain extent during compression, it can still make contact with at least one of the third wire 33 and the first wire 31.

[0070] In some embodiments, the third conductor 33 and the second conductor 32 are constructed as an integral structure to improve the connection strength and ease of installation.

[0071] See Figure 5 and Figure 6 , Figure 5 This illustration shows a structural schematic diagram of a car bumper provided in one embodiment of this application from another perspective; Figure 6 A schematic diagram of the disassembly structure of a car bumper provided in one embodiment of this application is shown.

[0072] In some embodiments, the car bumper also includes a back plate 4, which is disposed on the rear surface of the bumper body 1 and is used to connect and fix the bumper body 1 to the car, and can also play a role in shaping the bumper body 1.

[0073] In some embodiments, the backplate 4 includes a backplate body 41, a first connecting portion 42, and a second connecting portion 43. The backplate body 41 is attached to the bumper body 1. The backplate body 41 can be made of rigid materials such as plastic or metal and is fixed to the bumper body 1 by thermosetting or adhesive. The first connecting portion 42 and the second connecting portion 43 are respectively disposed at the upper and lower ends of the backplate body 41 on the side away from the bumper body 1, for connecting to the vehicle frame.

[0074] Specifically, the first connecting part 42 and the second connecting part 43 are provided with fixing holes so that fasteners such as bolts or screws can pass through the fixing holes to connect to the frame.

[0075] Optionally, the backplate 4 also includes a retaining ring 44, which is disposed on the side of the backplate body 41 opposite to the bumper body 1. One or more retaining rings 44 may be disposed at the left and right ends of the backplate body 41 respectively.

[0076] Optionally, the back panel body 41 has a notch relative to the ventilation slot 12, which communicates with the ventilation slot 12 to form an exhaust channel.

[0077] A first wire through hole 412 is provided on the back plate body 41 at the exit position of the first wire 31, so that the first connecting device 34 connected to the first wire 31 can pass through the first wire through hole 412. A second wire through hole 413 is provided on the back plate body 41 at the exit position of the second wire 32, so that the second connecting device 35 connected to the second wire 32 can pass through the second wire through hole 413. An air nozzle through hole 411 is also provided on the back plate body 41 at the exit position of the air nozzle 11, so that the air nozzle 11 can pass through the air nozzle through hole 411.

[0078] This application also provides a method for processing an automobile bumper, including the following steps:

[0079] S1: Prepare the main semi-finished product, so that a cavity and an opening communicating with the cavity are formed inside the main semi-finished product;

[0080] S2: Place the buffer assembly 2 into the cavity through the opening, and fix the buffer assembly 2 to the cavity wall;

[0081] S3: The main semi-finished product is vulcanized to melt and seal the opening to form a sealed buffer cavity 10, thus producing the bumper body 1.

[0082] In some embodiments, in step S1, the main semi-finished product can be configured as a cylindrical structure with openings at both ends, the length of which is slightly greater than the left and right length of the buffer cavity 10 to be processed. Then, in step S3, the openings at both ends of the main semi-finished product are joined together, and then high-temperature vulcanization is performed to seal the openings at both ends, thereby processing a sealed buffer cavity 10.

[0083] In some other embodiments, in step S1, the main semi-finished product is configured to include an intermediate cylinder and end caps, with openings at both ends of the intermediate cylinder. Then, in step S3, the end caps are used to seal the openings at both ends of the intermediate cylinder, followed by high-temperature vulcanization to bond the end caps and the intermediate cylinder together, thereby creating a sealed buffer cavity 10.

[0084] In some embodiments, the method for processing a car bumper further includes:

[0085] Before step S3, the electrical control circuit 3 is connected to the cavity wall of the cavity through the opening and led out to the outside of the cavity. That is to say, all the components in the buffer cavity 10 are installed before the main semi-finished product is vulcanized.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A car bumper, characterized in that, The car bumper includes: The bumper body (1) is made of an elastic and deformable material; a sealed buffer cavity (10) is provided inside the bumper body (1), and an air nozzle (11) communicating with the buffer cavity (10) is provided on the bumper body (1). The buffer assembly (2) is disposed inside the buffer cavity (10), and the buffer assembly (2) can undergo elastic deformation along the first direction when it is compressed.

2. The automobile bumper according to claim 1, characterized in that, The buffer component (2) is provided in multiple ways, and the multiple buffer components (2) are spaced apart along the second direction; wherein the second direction is at an angle to the first direction.

3. The automobile bumper according to claim 1, characterized in that, The buffer component (2) includes: The elastic element (21) is capable of elastic deformation along the first direction; and Connector (22), one end of which is connected to the elastic member (21), and the other end is inserted into and fixed in the cavity wall of the buffer cavity (10).

4. The automobile bumper according to claim 1, characterized in that, The car bumper also includes: An electrical control circuit (3) is at least partially disposed within the buffer cavity (10); before the buffer cavity (10) is compressed, the electrical control circuit (3) remains open; when the buffer cavity (10) is compressed, the electrical control circuit (3) is connected.

5. The automobile bumper according to claim 4, characterized in that, The buffer cavity (10) has a first cavity wall (101) and a second cavity wall (102) along a first direction; the buffer assembly (2) is disposed on the first cavity wall (101) and is spaced apart from the second cavity wall (102); The electrical control circuit (3) has a breakpoint, the first end (311) of which is connected to the buffer assembly (2), and the second end (321) of which is connected to the second cavity wall (102) and at least partially overlaps with the buffer assembly (2) along the first direction; when the bumper body (1) is deformed by compression along the first direction, the buffer assembly (2) is electrically connected to the second end (321).

6. The automobile bumper according to claim 5, characterized in that, The electrical control circuit (3) includes: The first wire (31) is connected to the buffer assembly (2). One end of the first wire (31) is the first end (311), and the end away from the first end (311) passes through the cavity wall of the buffer cavity (10). The second wire (32) is connected to the second cavity wall (102); one end of the second wire (32) is the second end (321), and the end of the second wire (32) away from the second end (321) passes through the cavity wall of the buffer cavity (10).

7. The automobile bumper according to claim 6, characterized in that, The electrical control circuit (3) also includes: The third conductor (33) is connected to the second conductor (32) and is set at an angle to the second conductor (32); along the first direction, the third conductor (33) at least partially overlaps with the buffer assembly (2).

8. The automobile bumper according to claim 7, characterized in that, The third conductor (33) and the second conductor (32) are constructed as an integral structure.

9. A method for processing a car bumper, characterized in that, include: Prepare a main semi-finished product, forming a cavity inside the main semi-finished product and an opening communicating with the cavity; The buffer assembly (2) is placed into the cavity through the opening and then inserted into the cavity wall of the cavity for fixation. The main semi-finished product is subjected to vulcanization treatment, so that the main semi-finished product melts and seals the opening to form a closed buffer cavity (10), and the bumper body (1) is processed.

10. The method for processing an automobile bumper according to claim 9, characterized in that, The car bumper also includes an electrical control circuit (3); the processing method of the car bumper also includes: Before the step of performing vulcanization treatment on the main semi-finished product to melt and seal the opening to form a closed buffer cavity (10) and process the bumper body (1), the electrical control circuit (3) is connected to the cavity wall of the cavity through the opening and led out to the outside of the cavity.

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