Connecting devices for vehicles and vehicles

Abstract

This invention discloses a connecting device for vehicles, including a connecting bracket. The connecting bracket includes a first positioning and fixing part for positioning a first component and a second positioning and fixing part for positioning a second component. The first and second positioning and fixing parts are integrated into one unit. A first matching part matching the connecting bracket is provided on the first component, and a second matching part matching the connecting bracket is provided on the second component. The connecting device for vehicles of this invention features small installation space, reliable positioning, and simple structure. It can achieve arrangement and installation within a limited space, ensuring the matching relationship of gaps and surface differences between sheet metal parts and plastic parts. This invention also discloses a vehicle.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology. Specifically, this invention relates to a connection device for a vehicle and a vehicle. Background Technology

[0002] The appearance of a car affects its sales, and the diverse appearance designs also place new demands on the structural design and manufacturing technology of the corresponding components.

[0003] To ensure the quality of matching gaps and surface differences in various novel designs, existing automotive sheet metal and plastic parts are mostly connected using brackets. However, when using brackets to connect sheet metal and plastic parts in limited space, such as when installing a rear bumper using brackets, there are difficulties in arrangement, which in turn cannot guarantee the matching relationship of gaps and surface differences between the sheet metal and plastic parts.

[0004] Chinese Patent Application No. 202321885942.3 discloses a front combination headlight and a vehicle. The front combination headlight includes a headlight body and a headlight cover disposed at the front end of the headlight body. The headlight cover has a connector, and the headlight body has a limiting groove. The connector is inserted into the limiting groove, and a limiting member is disposed within the limiting groove to limit the connector, ensuring that the headlight cover and headlight body are matched. Through this method, the front combination headlight of this application, by incorporating a limiting member within the limiting groove, reduces the matching error between the front combination headlight and surrounding sheet metal and plastic parts, thereby improving the matching efficiency of the headlight.

[0005] It is desirable to provide an improved connection device for vehicles, particularly a shielding element that improves the appearance shielding effect of the corner area. Summary of the Invention

[0006] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a connection device for vehicles, designed to achieve arrangement and installation within a limited space while ensuring the matching relationship of gaps and surface differences between sheet metal parts and plastic parts.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a connecting device for a vehicle, including a connecting bracket, the connecting bracket including a first positioning and fixing part for positioning a first component and a second positioning and fixing part for positioning a second component, the first positioning and fixing part and the second positioning and fixing part being integrated into one unit, the first component being provided with a first matching part that matches the connecting bracket, and the second component being provided with a second matching part that matches the connecting bracket.

[0008] The first positioning and fixing part includes a first limiting surface for fitting with the X-direction matching surface of the first component and for limiting the X-direction translation of the first component, and a first positioning mechanism for limiting the Y-direction and Z-direction translation of the first component.

[0009] The first positioning mechanism includes a first positioning element and a second positioning element, and the first matching part includes a first positioning hole for inserting the first positioning element and a second positioning hole for inserting the second positioning element.

[0010] The first positioning hole is a circular hole, and the second positioning hole is an oblong hole.

[0011] The first positioning and fixing part further includes bolts connected to the first component and used to restrict the rotation of the first component in the X direction, and multiple bolts are provided.

[0012] The second positioning and fixing part includes a second limiting surface for fitting with the second component, a second positioning mechanism for positioning the second component in the Y direction, and a first X-direction snap-fit ​​structure for snapping with the second component in the X direction.

[0013] The second positioning and fixing part further includes a third limiting surface for fitting with the second component, the third limiting surface being perpendicular to the second limiting surface.

[0014] The second matching part includes a limiting surface, a Y-direction positioning pin, a Z-direction limiting support surface, an X-direction snap-fit ​​surface that cooperates with the first X-direction snap-fit ​​structure, and a second X-direction snap-fit ​​structure that snaps with the connecting bracket. The connecting bracket is provided with a positioning hole for inserting the Y-direction positioning pin.

[0015] The first component is a sheet metal part, and the second component is a plastic part.

[0016] The present invention also provides a vehicle including the aforementioned connection device for the vehicle.

[0017] The vehicle connection device of the present invention has the characteristics of small layout space, reliable positioning and simple structure. It can be arranged and installed in a limited space and ensure the matching relationship of gap and surface difference between sheet metal parts and plastic parts. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the connecting bracket;

[0019] Figure 2 This is a structural schematic diagram of the first positioning and fixing part;

[0020] Figure 3 This is another structural schematic diagram of the first positioning and fixing part;

[0021] Figure 4 This is a structural schematic diagram of the second positioning and fixing part;

[0022] Figure 5 This is a schematic diagram of the structure of the first matching part;

[0023] Figure 6 This is a schematic diagram of the structure of the second matching part;

[0024] The markings in the above figures are as follows: 1. First positioning and fixing part; 2. Second positioning and fixing part; 3. First matching part; 4. Second matching part; 5. First limiting surface; 6. First positioning element; 7. Second positioning element; 8. Bolt; 9. Second limiting surface; 10. Second positioning mechanism; 11. First X-direction snap-fit ​​structure; 12. Third limiting surface; 13. First positioning hole; 14. Second positioning hole; 15. X-direction matching surface; 16. Y-direction positioning pin; 17. Z-direction limiting support surface; 18. X-direction snap-fit ​​surface; 19. Second X-direction snap-fit ​​structure; 20. Y-direction positioning groove; 21. Guide port for coarse guidance. Detailed Implementation

[0025] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.

[0027] It should be noted that in the following embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution; they are merely for the convenience of description.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figures 1 to 5As shown, the present invention provides a connection device for a vehicle, including a connection bracket. The connection bracket includes a first positioning and fixing part 1 for positioning a first component and a second positioning and fixing part 2 for positioning a second component. The first positioning and fixing part 1 and the second positioning and fixing part 2 are integrated into one unit. A first matching part 3 that matches the connection bracket is provided on the first component, and a second matching part 4 that matches the connection bracket is provided on the second component. The first component and the second component are two components made of different materials on the vehicle.

[0030] Specifically, this invention relates to the field of assembling sheet metal parts and plastic parts, and plastic parts with each other. In this invention, the first component is a sheet metal part on a vehicle body, and the material of the first component is metal. The second component is a plastic part, such as a rear bumper installed at the rear of a vehicle. A plastic connecting bracket, formed by the spatial layout of the plastic rear bumper, connects the sheet metal parts and plastic parts within a limited space, ensuring a precise match in terms of gap and surface difference at the T-shaped butt joints.

[0031] In this invention, the connecting bracket that connects sheet metal parts and plastic parts utilizes the bracket's characteristics to connect the sheet metal parts and plastic parts within a limited space. The plastic parts ensure a precise match in terms of gap and surface difference at the T-shaped butt joint. This design features small installation space, reliable positioning, simple structure, and broad applicability. The snap-fit ​​structure also avoids the cost issues associated with using numerous bolts and nuts, thus reducing costs.

[0032] like Figure 1 As shown, the connecting bracket is installed between the first component and the second component. The connecting bracket is assembled on the first component to achieve alignment of the flatness difference in the X direction (the length direction of the vehicle) and the gap alignment in the Y direction (the width direction of the vehicle) between the first component and the second component.

[0033] like Figures 1 to 3 As shown, the first positioning and fixing part 1 includes a first limiting surface 5 for fitting with the X-direction matching surface 15 of the first component and for limiting the X-direction translation of the first component, and a first positioning mechanism for limiting the Y-direction and Z-direction (vertical direction) translation of the first component. Multiple first limiting surfaces 5 are provided, and each first limiting surface 5 is distributed at different positions to ensure accurate positioning of the first component.

[0034] like Figure 2 and Figure 5 As shown, the first positioning mechanism includes a first positioning element 6 and a second positioning element 7, and the first matching part 3 includes a first positioning hole 13 for inserting the first positioning element 6 and a second positioning hole 14 for inserting the second positioning element 7. In this embodiment, the first positioning hole 13 is a circular hole, and the second positioning hole 14 is an oblong hole.

[0035] like Figure 3 As shown, the first positioning and fixing part 1 also includes bolts 8 connected to the first component and used to restrict the rotation of the first component in the X direction. Multiple bolts 8 are provided, and nuts are provided on the first component that are threaded to the bolts 8, so as to restrict the rotation of the first component in the X direction.

[0036] In this invention, such as Figures 1 to 3 As shown, based on the constraint method of 6 degrees of freedom and referring to the rear retaining shape space, an L-shaped bracket and sheet metal positioning structure are set up. The first component's X-axis translation and the first component's Y-axis and Z-axis rotation are restricted by 4 first limiting surfaces 5 respectively. The first component's Y-axis and Z-axis translation are restricted by circular positioning pins and oblong holes respectively. The first component's X-axis rotation is restricted by bolts.

[0037] In this embodiment, four first limiting surfaces 5 are provided. The first limiting surfaces 5 are perpendicular to the X-direction, and the first positioning element 6 and the second positioning element 7 are parallel to the X-direction.

[0038] like Figure 1 and Figure 4 As shown, the second positioning and fixing part 2 includes a second limiting surface 9 for engaging with the second component, a second positioning mechanism 10 for positioning the second component in the Y direction, and a first X-direction snap-fit ​​structure 11 for snapping with the second component in the X direction. Multiple second limiting surfaces 9 are provided, each distributed at a different position, and all second limiting surfaces 9 are distributed along the Y direction to ensure accurate positioning of the second component. The connecting bracket and the second component are connected by a snap-fit ​​connection for easy assembly.

[0039] like Figure 1 and Figure 4 As shown, the second positioning and fixing part 2 also includes a third limiting surface 12 for engaging with the second component. The third limiting surface 12 is perpendicular to the second limiting surface 9 and perpendicular to the X-direction, while the second limiting surface 9 is parallel to the X-direction. Multiple third limiting surfaces 12 are provided, each distributed at a different position, and all third limiting surfaces 12 are distributed along the Y-direction to ensure accurate positioning of the second component.

[0040] In this invention, a second limiting surface 9 is provided, mainly to control the Z-direction gap between the second component and the first component; a first X-direction snap-fit ​​structure 11 and a limiting surface are provided to limit the flatness of the second component and the first component; simultaneously, a second positioning mechanism 10 is provided to ensure the gap between the upper second component and the first component meets the requirements. The main structural shape of the connecting bracket can be freely designed according to the rear bumper shape and sheet metal space. The connecting bracket can be very small in volume, and the X and Z limiting of the connecting bracket edge can be designed within a very small space.

[0041] like Figure 1 and Figure 5 As shown, the first matching part 3 also includes an X-direction matching surface 15. The number of X-direction matching surfaces 15 is the same as the number of first limiting surfaces 5. Each X-direction matching surface 15 is respectively attached to a first limiting surface 5.

[0042] like Figure 5 As shown, the first component is provided with an X-direction matching surface 15 corresponding to the L-shaped connecting bracket, as well as circular waist-shaped positioning holes for Y-direction and Z-direction limiting, and bolt assembly nut holes for the connecting bracket. This mainly ensures complete limiting and relative relationship with the connecting bracket, thereby ensuring the relative relationship with the second component.

[0043] like Figure 1 and Figure 6 As shown, the second matching part 4 includes a limiting surface, a Y-direction positioning pin 16, a Z-direction limiting support surface 17, an X-direction snap-fit ​​surface 18 that mates with the first X-direction snap-fit ​​structure 11, and a second X-direction snap-fit ​​structure 19 that snaps into the connecting bracket. The connecting bracket is provided with a positioning hole for inserting the Y-direction positioning pin 16. The limiting surface is used to contact the connecting bracket to achieve limiting in the X, Y, and Z directions.

[0044] like Figure 6 As shown, the first component is provided with a structure corresponding to the limiting part of the connecting bracket, namely, a Y-direction and Z-direction limiting surface is provided on the top, and a Y-direction positioning pin 16 is provided on the bottom. An X-direction snap-fit ​​surface 18 corresponding to the buckle on the connecting bracket is provided on the top, and a second X-direction snap-fit ​​structure 19 is provided below the X-direction snap-fit ​​surface 18, so that the plastic part and the connecting bracket can be snap-fit ​​connected. A Z-direction limiting support surface 17 is provided, which contacts the Z-direction matching surface of the plastic part during the matching process to avoid interference.

[0045] like Figure 6As shown, the second matching part 4 also includes a Y-direction positioning groove 20 and a coarse guide port 21. The X-direction snap-fit ​​surface 18, the Z-direction limiting support surface 17, the Y-direction positioning groove 20 and the coarse guide port 21 are located at the same end of the second component. The Y-direction positioning groove 20 is a groove provided on the second component. The Y-direction positioning groove 20 is used to embed the connecting bracket. The coarse guide port 21 is provided at the opening of the Y-direction positioning groove 20. The coarse guide port 21 has a V-shaped structure. The coarse guide port 21 is used to guide the connecting bracket to move toward the Y-direction positioning groove 20 during assembly, ensuring assembly efficiency and assembly quality. A coarse guide element is provided on the connecting bracket.

[0046] The assembly process of the first component and the second component is as follows:

[0047] The first positioning element 6 and the second positioning element 7 of the connecting bracket are positioned into the first positioning hole 13 and the second positioning hole 14 of the first component, thus restricting the Y-axis and Z-axis translational motion of the connecting bracket and the first component. At this time, the four first limiting surfaces 5 of the connecting bracket are respectively engaged with the four X-axis matching surfaces 15 of the first component, thereby restricting the X-axis translational motion and the Y-axis and Z-axis rotation of the connecting bracket. The bolts are fixed to the nuts of the first component with a tool, restricting the X-axis rotation. The Y-axis oblong hole of the lower connecting bracket, after the bolts are tightened to the nuts of the first component, controls the lower Y-axis rotation. In this way, the six degrees of freedom of the connecting bracket on the first component (i.e., the translational motion and the rotation in the X, Y, and Z directions) are completely constrained, and the connecting bracket and the first component are fully positioned.

[0048] Align the second component with the coarse guide element at the upper end of the connecting bracket, insert the lower Y-axis positioning pin 16 into the positioning hole on the connecting bracket, and engage the upper X-axis engaging surface 18 and the lower second X-axis engaging structure 19 with the buckle on the connecting bracket. At the same time, the limiting surface of the second component contacts the limiting surface of the connecting bracket, limiting the X, Y, and Z directions of the second component and clamping it with the connecting bracket. That is, the second component is limited by the X, Y, and Z directions of the connecting bracket, and the gap flatness between the second component and the first component is guaranteed.

[0049] At this point, as the second component engages with the connecting bracket, its X-axis side gradually contacts the X-axis limiting rib on the connecting bracket, ensuring that the surface difference between the second and first components is not too large. Meanwhile, the X-axis limiting rib on the other side of the second component contacts the first component, ensuring that the surface difference between the second and first components is not too small. In this way, the X-axis distance between the second and first components is restricted, and the surface difference is guaranteed.

[0050] In summary, given the extremely limited space, the X and Z axes are prioritized to ensure stable positioning of the surface difference between the second and first components. Then, the Y axis is used for vertical positioning, thus ensuring the gap between the second and first components is also maintained. This stabilizes the surface difference and gap between the second and first components, guaranteeing the precision of the matching.

[0051] The present invention also provides a vehicle including a connection device for a vehicle with the above-described structure. The specific structure of this connection device for a vehicle can be found in [reference needed]. Figures 1 to 6 Further details will not be elaborated here. Since the vehicle of the present invention includes the vehicle connection device described in the above embodiments, it possesses all the advantages of the aforementioned vehicle connection device.

[0052] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A connecting device for vehicles, characterized in that: The connecting bracket includes a first positioning and fixing part for positioning a first component and a second positioning and fixing part for positioning a second component. The first positioning and fixing part and the second positioning and fixing part are integrated into one unit. The first component is provided with a first matching part that matches the connecting bracket, and the second component is provided with a second matching part that matches the connecting bracket. The first positioning and fixing part includes a first limiting surface for fitting with the X-direction matching surface of the first component and for limiting the X-direction translation of the first component, and a first positioning mechanism for limiting the Y-direction and Z-direction translation of the first component; The second positioning and fixing part includes a second limiting surface for fitting with the second component, a second positioning mechanism for positioning the second component in the Y direction, and a first X-direction snap-fit ​​structure for snapping with the second component in the X direction. The first component is a sheet metal part, and the second component is a plastic part.

2. The connecting device for a vehicle according to claim 1, characterized in that: The first positioning mechanism includes a first positioning element and a second positioning element, and the first matching part includes a first positioning hole for inserting the first positioning element and a second positioning hole for inserting the second positioning element.

3. The connecting device for a vehicle according to claim 2, characterized in that: The first positioning hole is a circular hole, and the second positioning hole is an oblong hole.

4. The vehicle connection device according to any one of claims 1 to 3, characterized in that: The first positioning and fixing part further includes bolts connected to the first component and used to restrict the rotation of the first component in the X direction, and multiple bolts are provided.

5. The vehicle connection device according to any one of claims 1 to 3, characterized in that: The second positioning and fixing part further includes a third limiting surface for fitting with the second component, the third limiting surface being perpendicular to the second limiting surface.

6. The vehicle connection device according to any one of claims 1 to 3, characterized in that: The second matching part includes a limiting surface, a Y-direction positioning pin, a Z-direction limiting support surface, an X-direction snap-fit ​​surface that cooperates with the first X-direction snap-fit ​​structure, and a second X-direction snap-fit ​​structure that snaps with the connecting bracket. The connecting bracket is provided with a positioning hole for inserting the Y-direction positioning pin.

7. A vehicle, characterized in that: Includes the vehicle connection device as described in any one of claims 1 to 6.

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