CN217575111U - Bumper limiting structure and automobile - Google Patents

Abstract

The embodiment of the application provides a limit structure and car of bumper. The limiting structure of the bumper comprises a connecting piece and a reinforcing piece. The connecting piece is used for with bumper fixed connection, and the connecting piece includes spacing portion. The reinforcing piece is arranged between the connecting piece and the front end frame of the automobile and fixedly connected with the front end frame, and comprises a limiting matching portion which is matched with the limiting portion and used for limiting the bumper to droop towards the gravity direction. So, having shortened the support distance to the bumper through setting up of reinforcement and connecting piece, prevent because bearing structure's length overlength and the deformation that takes place, have the effect of avoiding or reducing the flagging of bumper along the gravity direction.

Description

Bumper limiting structure and automobile

Technical Field

The application relates to the technical field of automobiles, in particular to a limiting structure of a bumper and an automobile.

Background

The automobile bumper not only has the decoration function, but also has the functions of absorbing and buffering external impact force, protecting the automobile body and protecting the safety of passengers.

The existing bumpers are mostly fixedly installed through bumper brackets on the left side and the right side, and the phenomenon or risk that the bumpers sag can be caused. One measure to improve the risk of bumper sagging is: a single cantilever support extends out of the water tank cross beam, and the bumper is fixed on the cantilever support through bolts.

However, the cantilever support is too long due to the fact that the distance between the water tank cross beam and the bumper is too far, and the cantilever support is deformed after being durably supported, so that the bumper sags.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to provide a limiting structure of a bumper and an automobile, wherein the limiting structure can avoid or reduce the sagging of the bumper.

The embodiment of the application provides a limit structure of bumper includes:

the connecting piece is used for being fixedly connected with the bumper and comprises a limiting part;

the reinforcement is arranged between the connecting piece and the front end frame of the automobile and fixedly connected with the front end frame, and comprises a limiting matching part, and the limiting matching part is matched with the limiting part and used for limiting the bumper to droop towards the gravity direction.

Further, along the gravity direction, the limiting part is arranged above at least part of the limiting matching part, and the limiting part is lapped on the part, below the limiting part, of the limiting matching part.

Furthermore, the limiting part comprises a first box body which is arranged on one side of the connecting piece back to the bumper and extends in the direction far away from the connecting piece;

the limiting matching part comprises a second box body which is arranged on one side of the reinforcing part facing the connecting part and extends towards the direction close to the connecting part, and the second box body comprises an accommodating cavity formed in the second box body;

at least part of the first box body is arranged in the containing cavity, and the part of the first box body, which is positioned in the containing cavity, is lapped on the inner lower surface of the second box body along the gravity direction.

Furthermore, the first box body comprises a cavity arranged in the first box body and a first water outlet communicated with the cavity, and the first water outlet penetrates through the overlapped side wall of the first box body and the second box body;

the second box body include with the second outlet that the holding chamber intercommunication set up, the second outlet runs through interior lower surface place lateral wall sets up.

Further, the first box includes a free end remote from the connector, and the second box includes an inside surface opposite the free end with a gap therebetween.

Further, the second box body further comprises a first reinforcing rib positioned in the gap, and the first reinforcing rib is connected with the inner lower surface and the inner side surface.

Further, the reinforcing part further comprises a reinforcing part body fixedly connected with the second box body and a second reinforcing rib connected with the reinforcing part body and the outer surface of the second box body.

Furthermore, the reinforcing piece also comprises a reinforcing piece body fixedly connected with the limiting matching part and a lamp mounting part arranged on the reinforcing piece body, and the lamp mounting part is used for mounting a lamp of an automobile;

the lamp installation part is in with spacing cooperation portion the orthographic projection phase separation on the plane of reinforcement body place.

Furthermore, a plurality of welding points are arranged on one side of the connecting piece, which is back to the limiting part, and the welding points are used for welding and fixing the connecting piece and the bumper;

the connecting piece further comprises an energy absorbing part arranged between at least part of the welding points, and the energy absorbing part comprises a groove formed by sinking the part of the plane where the welding points are located away from the plane where the welding points are located.

Furthermore, along the direction of gravity, at least part of the limiting part is arranged above the limiting matching part, and the part of the limiting part above the limiting matching part is lapped above the limiting matching part.

Further, the bumper structure also comprises a reinforcing piece which is fixedly connected with the bumper, and the reinforcing piece comprises a fixing part;

the reinforcing piece further comprises a matching part, and the fixing part is fixedly connected with the matching part.

The embodiment of the application provides an automobile, includes:

the bumper limiting structure of any one of the above;

and the front end frame is fixedly connected with the reinforcing piece.

The utility model provides a limit structure of bumper, connecting piece be used for with bumper fixed connection, set up the reinforcement between connecting piece and front end frame, set up spacing cooperation portion at the reinforcement, set up spacing portion at the connecting piece, through the cooperation of spacing cooperation portion with spacing portion, restrict the bumper and hang down along the direction of gravity. So, having shortened the support distance to the bumper through setting up of reinforcement and connecting piece, prevent because bearing structure's length overlength and the deformation that takes place, have the effect of avoiding or reducing the flagging of bumper along the gravity direction.

Drawings

Fig. 1 is a schematic structural view illustrating a limiting structure of a bumper according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of the connector of FIG. 1;

FIG. 3 is a schematic view of the connection member of FIG. 1 fixedly connected to a bumper;

FIG. 4 is a schematic view of a reinforcement member and a reinforcement member engaged with each other according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of the reinforcement-mounted lamp of FIG. 1;

FIG. 6 is a partial schematic view of the restraint structure of FIG. 1 with a bumper mounted thereto;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 9 is another structural view of the connector of FIG. 1;

FIG. 10 is a further structural view of the connector of FIG. 1;

FIG. 11 is a schematic structural view of the second container in FIG. 1;

FIG. 12 is a schematic structural view of the second box body and the reinforcement body in FIG. 1;

fig. 13 is a schematic structural view illustrating a position of the impact beam and the limit fitting portion in fig. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present application provides a limiting structure 100 of a bumper (hereinafter referred to as limiting structure 100). The spacing structure 100 includes a connecting member 110 and a reinforcing member 120.

The connecting member 110 is used to be fixedly connected to the bumper 130. The connecting member 110 may be configured to be identical or similar to the shape of the bumper 130, so that the connecting member 110 can be attached and fixed to the bumper 130, thereby reducing the space occupied by the connecting member 110 and reducing the volume. In some embodiments, the connector 110 may be manufactured using plastic, sheet metal, or other materials. The connecting member 110 includes a stopper portion 111.

The reinforcement member 120 is disposed between the connection member 110 and the front end frame 140 of the vehicle, and is fixedly connected to the front end frame 140. The connecting member 110, the reinforcing member 120, and the front end frame 140 are arranged in sequence. The reinforcing member 120 includes a limit engagement portion 121, and the limit engagement portion 121 is engaged with the limit portion 111 to limit the bumper 130 from drooping in the gravity direction. It will be understood that the direction of gravity may refer to a direction along the height of the car and pointing towards the ground.

In the limiting structure 100 of the embodiment of the application, the connecting member 110 is used for being fixedly connected with the bumper 130, the reinforcing member 120 is arranged between the connecting member 110 and the front end frame 140, the limiting matching portion 121 is arranged on the reinforcing member 120, the limiting portion 111 is arranged on the connecting member 110, and the bumper 130 is limited from drooping along the gravity direction by the matching of the limiting matching portion 121 and the limiting portion 111. Thus, the supporting distance of the bumper 130 is shortened through the reinforcing part 120 and the connecting part 110, deformation caused by overlong supporting structures is prevented, the limiting part 111 and the limiting matching part 121 are arranged, and the beneficial effect of avoiding or reducing the sagging of the bumper 130 along the gravity direction is achieved.

Referring to fig. 2 and 3, in some embodiments, a plurality of welding points 112 are disposed on a side of the connecting member 110 opposite to the limiting portion 111, and the welding points 112 are used for welding and fixing the connecting member 110 and the bumper 130. By providing a plurality of welding points 112, the connection strength of the connecting member 110 to the bumper 130 can be ensured. The welding points 112 may be arranged in a rectangle, a circle, etc.; in this embodiment, the welding point 112 is set to be rectangular, the long side of the rectangle can be set to be greater than or equal to 25mm, and the short side of the rectangle can be set to be greater than or equal to 20mm, so as to ensure the welding effect.

The connection 110 further comprises an energy absorbing portion 113 arranged between at least part of the welding points 112. Energy absorbing portion 113 includes a recess 114 formed by recessing a portion of the plane of weld 112 away from the plane of weld 112. The groove 114 may be disposed around the solder joint 112 or disposed around the solder joint 112. The groove 114 may have a corresponding height, width, etc. as the case may be. Therefore, the situation that the connecting piece 110 and the bumper 130 are made of different materials and have different thermal expansion coefficients to cause heating or low-temperature deformation can be avoided, the appearance surface of the bumper 130 shrinks, the energy absorption part 113 with the arch structure is arranged, deformation of the bumper 130 in the welding process can be reduced, and the welding effect is improved. The energy absorbing part 113 may be formed in a long strip shape to ensure an energy absorbing effect.

Referring to fig. 4, in some embodiments, the position limiting structure 100 further includes a reinforcing member 150. The reinforcing member 150 is used to be fixedly connected to the bumper 130. In some embodiments, the reinforcement 150 may be integrally manufactured with the bumper 130, or may be separately manufactured and fixed to the bumper 130 by bonding, welding, or the like. The reinforcing member 150 includes a fixing portion 151. The reinforcing member 120 further includes a fitting portion 122, and the fixing portion 151 is fixedly connected to the fitting portion 122. Thus, the reinforcing member 150 is fixedly connected to the reinforcing member 120, so as to provide a supporting force for the bumper 130 along the vehicle height direction and the vehicle length direction, thereby preventing the bumper 130 from sagging, and improving the limiting reliability of the limiting structure 100.

In some embodiments, the reinforcement 150 may be provided at a midline region of the bumper 130, thus facilitating installation and positioning of the bumper 130. In the present embodiment, the fixing portion 151 includes a mounting hole 152 and a positioning hole 153 penetrating both sides thereof, and the fitting portion 122 includes a blind rivet nut (not shown) and a positioning pin 123 provided thereon. The rivet nut fixedly connects the reinforcing part 150 and the reinforcing part 120 through the mounting hole 152, and the positioning pin 123 is matched and positioned with the positioning hole 153, which is helpful for ensuring the mounting precision of the reinforcing part 150.

In some embodiments, the position-limiting part 111 is disposed above at least a portion of the position-limiting matching part 121 along the gravity direction, and the position-limiting part 111 overlaps with a portion of the position-limiting matching part 121 located below the position-limiting part 111. So, in whole car assembling process, can overlap joint spacing portion 111 in the part top of spacing cooperation portion 121, spacing cooperation portion 121 provides the support to spacing portion 111, and then reaches the effect of avoiding or reducing bumper 130 flagging, and through the lapped mode, can avoid adopting the operating space that modes such as bolt, screw need in the connection process, has reduced the assembly degree of difficulty, has improved efficiency.

Referring to fig. 5, in some embodiments, the reinforcement member 120 further includes a reinforcement member body 125 fixedly connected to the position-limiting fitting portion 121, and a lamp mounting portion 126 disposed on the reinforcement member body 125, wherein the lamp mounting portion 126 is used for mounting a lamp 124 of an automobile. The lamp 124 may include a and C lamps of an automobile. The lamp mounting portion 126 may include a plurality of mounting holes 1261, and the lamp 124 may be bolted, screwed, etc. to the lamp mounting portion 126.

The lamp mounting portion 126 is separated from the limit fitting portion 121 in an orthogonal projection of the plane of the reinforcement body 125. In this way, the assembling property of the lamp 124 can be preferentially satisfied, and the lamp 124 can be attached to the reinforcement 120 before the bumper 130 is attached. And can adapt to the molding size of car light 124, for example, the car light 124 that sets up through can guarantee the installation intensity and the installation reliability of car light 124. In some embodiments, the lamp 124 is secured to the reinforcement 120, the front end frame 140, and the vehicle body simultaneously.

Referring to fig. 6 to 8, in some embodiments, the position-limiting portion 111 includes a first box 1111 disposed on a side of the connecting member 110 opposite to the bumper 130 and extending away from the connecting member 110. The position limit fitting part 121 includes a second case 1211 disposed on a side of the reinforcing member 120 facing the connecting member 110 and extending in a direction approaching the connecting member 110. That is, the first container 1111 and the second container 1211 face each other, and are opposite to each other. The first box 1111 and the second box 1211 are a cube, a rectangular parallelepiped, a cylinder, etc., which is not limited in this application. The first box 1111 and the connecting member 110 may be integrally manufactured or may be separately manufactured and then fixedly connected by bonding or other means. In other embodiments, the first box 1111 may also be disposed on the grid fixedly connected to the bumper 130, such that the second box 1211 is fixedly connected to the bumper 130. The second casing 1211 and the reinforcement member 120 may be integrally formed, or may be separately formed and fixedly coupled to each other by welding, bonding, or the like.

In some embodiments, the first box 1111 further includes a hollow cavity 11111 (see fig. 9), and the cavity 11111 may be opened toward the bumper 130 to facilitate hollowing out the interior of the first box 1111, thereby helping to reduce the weight of the connecting member 110 and the weight of the vehicle. In some embodiments, the first box 1111 further includes a rib 11115 disposed inside the first box 1111, and the rib 11115 is disposed to enhance the rigidity of the first box 1111, so as to ensure the reliability of the position limitation.

The second container 1211 includes a receiving chamber 12111 formed therein. At least a portion of the first container 1111 is disposed in the receiving chamber 12111, and along the gravity direction, a portion of the first container 1111 disposed in the receiving chamber 12111 overlaps the inner lower surface 12112 of the second container 1211. Therefore, the bumper 130 is limited along the gravity direction through the lap joint of the first box body 1111 and the second box body, and the structure of the first box body 1111 and the second box body 1211 is arranged, so that the rigidity of the limiting part 111 and the limiting matching part 121 can be ensured, the limiting reliability is improved, and the sagging caused by durability is avoided. And the working space can be saved, and the assembly difficulty is reduced.

In some embodiments, the second casing 1211 also includes a socket 12113 disposed in communication with the cavity 12111. The outlet 12113 may be provided at a side of the second case 1211 opposite to the first case 1111, thereby facilitating the insertion of the first case 1111 into the second case 1211. In some embodiments, a chamfer 12119 may be provided at the receptacle 12113, and the chamfer 12119 may be flexibly sized to facilitate insertion of the first cartridge 1111. The outlet 12113 may also be provided with an opening on the upper portion of the second container 1211 and on the side of the first container 1111 opposite to the second container 1211, so as to reduce the difficulty of inserting the first container 1111 into the second container 1211.

In some embodiments, the edge of the first container 1111 overlapping the second container 1211 is spaced apart from a portion of the inner wall of the second container 1211. For example, the upper portion of the first container 1111 is spaced apart from the inner upper surface, the inner left surface and the inner right surface of the second container 1211 by a distance of 3mm or more. The lower portion of the first container 1111 is attached to the inner lower surface 12112 of the second container. Thus, the assemblability of the first case 1111 and the second case 1211 is ensured.

In some embodiments, the first cartridge 1111 also includes a free end 11112 distal to the connector 110. The free end 11112 is the end of the first cartridge 1111 that protrudes from the connector 110. The second casing 1211 includes an inside surface 12114 opposite the free end 11112 with a gap 12115 between the free end 11112 and the inside surface 12114. The gap 12115 is a portion of the housing chamber 12111. So, first box 1111 can slide in the accommodation chamber 12111, improves pedestrian's leg performance of protection of vehicle. The length of the gap 12115 may be determined by simulation, for example, 30mm or more.

Referring to fig. 10 and 11, in some embodiments, the first container 1111 further includes a first drainage hole 11113 communicating with the cavity 11111, and the first drainage hole 11113 is disposed through a sidewall of the first container 1111 overlapping with the second container 1211. The first drain hole 11113 is disposed through the bottom wall of the first container 1111. The number of the first drain holes 11113 may be plural.

The second box 1211 includes a second outlet 12116 communicating with the receiving cavity 12111, and the second outlet 12116 penetrates through the sidewall of the inner bottom surface 12112. The second drain hole 12116 is provided through the bottom wall of the second case 1211. The number of the second bleed holes 12116 may be plural. Therefore, the first box 1111 and the second box 1211 can be prevented from being accumulated after water enters, the water can be discharged in time, and the safety of the automobile can be ensured.

Referring to fig. 11 and 12, in some embodiments, the second casing 1211 further includes a first bead 12117 disposed within the gap 12115, the first bead 12117 connecting the inner lower surface 12112 and the inner side surface 12114. Thus, the rigidity of the inner lower surface 12112 of the second case 1211 is enhanced, and the positioning reliability is improved. The first ribs 12117 may be provided in plural, and the gaps between the plural ribs 12117 may be 10mm or less, to improve the effect of the ribs 12117.

The reinforcement member 120 further includes a second reinforcement rib 12118 connecting the reinforcement member body 125 and the outer surface of the second case 1211. Thus, the rigidity of the second box 1211 is enhanced, the reliability of the first box 1111 overlapping the second box 1211 is improved, and the limit reliability of the bumper 130 is improved. Also, the second reinforcing bead 12118 may be provided in plurality.

Referring to fig. 13, in some embodiments, an impact beam 170 is further fixedly connected to the reinforcement member 120. The anti-collision beam 170 is disposed below the second box 1211, and the distance f between the anti-collision beam 170 and the second box 1211 can be optimized through a simulation structure, for example, the distance f can be greater than or equal to 20mm. Thus, the second case 1211 is not shielded by the impact beam 170 after being deformed by the collision, thereby improving the leg protection performance of the pedestrian. In some embodiments, the impact beam 170 is further fixedly connected with a buffer block 180, and the buffer block 180 is disposed between the impact beam 170 and the bumper 130 for buffering.

In some embodiments, the position-limiting part 111 may be a first plate (not shown) extending from the surface of the connecting member 110, and the position-limiting fitting part 121 may be a second plate (not shown) extending from the surface of the reinforcing member 120, and the first plate overlaps the second plate to prevent the bumper 130 from sagging. The second plate can also comprise a flanging which is arranged upwards from the edge, so that the first plate is conveniently inserted into a groove formed by the flanging and is convenient to mount.

In some embodiments, at least a portion of the position-limiting part 111 is disposed above the position-limiting matching part 121 along the gravity direction, and a portion of the position-limiting part 111 above the position-limiting matching part 121 overlaps the position-limiting matching part 121. This embodiment is substantially the same as the previous embodiments, except that the position of the position-limiting part 111 of this embodiment is located above the position-limiting matching part 121, and the position-limiting part is overlapped with the position-limiting matching part 121 to achieve the purpose of position limitation. For example, compared with the first box 1111 and the second box 1211, a receiving cavity may be disposed inside the first box 1111, the second box 1211 is inserted into the receiving cavity, and the inner upper wall of the first box 1111 is overlapped with the upper portion of the second box 1211, which will not be described again.

The embodiment of the application provides an automobile (not shown). The automobile includes a bumper stopper structure 100 and a front end frame 140. The front end frame 140 is fixedly connected to the reinforcement member 120 of the position limiting structure 100, for example, by bolts, screws, and clamping. In some embodiments, front end frame 140 may be fixedly attached to a lower side or cross member of an automobile.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A limit structure of a bumper is characterized by comprising:

the connecting piece is used for being fixedly connected with the bumper and comprises a limiting part;

the reinforcement is arranged between the connecting piece and the front end frame of the automobile and fixedly connected with the front end frame, the reinforcement comprises a limiting matching part, and the limiting matching part is matched with the limiting part and used for limiting the bumper to droop towards the gravity direction.

2. The structure of claim 1, wherein the position-limiting portion is disposed above at least a portion of the position-limiting engagement portion in a direction of gravity, and the position-limiting portion overlaps a portion of the position-limiting engagement portion below the position-limiting portion.

3. The limit structure of a bumper according to claim 2,

the limiting part comprises a first box body which is arranged on one side of the connecting piece, which is back to the bumper, and extends in the direction far away from the connecting piece;

the limiting matching part comprises a second box body which is arranged on one side of the reinforcing part facing the connecting part and extends towards the direction close to the connecting part, and the second box body comprises an accommodating cavity formed inside the second box body;

at least part of the first box body is arranged in the containing cavity, and the part of the first box body positioned in the containing cavity is lapped on the inner lower surface of the second box body along the gravity direction.

4. The limit structure of a bumper according to claim 3, wherein the first box body comprises a cavity arranged inside the first box body and a first drainage hole communicated with the cavity, and the first drainage hole is arranged through a side wall of the first box body, which is overlapped with the second box body;

the second box body include with the second outlet that the holding chamber intercommunication set up, the second outlet runs through interior lower surface place lateral wall sets up.

5. A bumper beam retainer structure according to claim 3, wherein said first box member includes a free end remote from said connector member, said second box member includes an inside surface opposite said free end, and said free end is spaced from said inside surface.

6. The structure of claim 5, wherein the second box further comprises a first rib located in the gap, the first rib connecting the inner lower surface and the inner side surface; and/or

The reinforcing part further comprises a reinforcing part body fixedly connected with the second box body and a second reinforcing rib connected with the reinforcing part body and the outer surface of the second box body.

7. The limit structure of a bumper according to claim 2, wherein the reinforcement further comprises a reinforcement body fixedly connected with the limit fitting portion, and a lamp mounting portion provided to the reinforcement body, the lamp mounting portion being used for mounting a lamp of an automobile;

the lamp installation part is in with spacing cooperation portion the orthographic projection phase separation of reinforcement body place plane.

8. The structure of claim 1, wherein the connecting member has a plurality of welding points on a side thereof facing away from the position-limiting portion, the welding points being used for welding the connecting member to the bumper;

the connecting piece further comprises an energy absorbing part arranged between at least part of the welding points, and the energy absorbing part comprises a groove formed by sinking the part of the plane where the welding points are located away from the plane where the welding points are located.

9. The structure of claim 1, wherein at least a portion of the restraining portion is disposed above the restraining engagement portion along a direction of gravity, and a portion of the restraining portion above the restraining engagement portion overlaps the restraining engagement portion; and/or

The limit structure of bumper still includes the reinforcement for with bumper fixed connection, the reinforcement includes the fixed part, the reinforcement still includes cooperation portion, the fixed part with cooperation portion fixed connection.

10. An automobile, comprising:

a bumper-limiting structure according to any one of claims 1 to 9;

and the front end frame is fixedly connected with the reinforcing piece.

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