A structure and method for installing a through-type taillight on a car's rear tailgate

Abstract

This invention discloses a structure and method for installing a through-type taillight on a car's tailgate, relating to the field of automotive lighting technology. It includes a through-type taillight and a tailgate. The through-type taillight has multiple positioning ribs arranged along the vehicle's width and height. The tailgate has a limiting countersink adapted to the positioning ribs to limit the through-type taillight's Y and Z directions. Multiple auxiliary limiting blocks are evenly arranged on the Z-direction surface of the taillight's rear housing, abutting against the tailgate's sidewall flange. Multiple bolt bases are installed on the taillight's rear housing, each bolt base having an opening in the Y direction. The bolt bases are used to assemble bolts, with the bolts engaging in the Z-direction and having a set gap in the Y-direction. This allows the thermal expansion and contraction of the through-type taillight to be adjusted and stress-relieving through-type taillight stress by slightly shifting the bolts on the bolt bases in the Y direction. This invention prevents interference during taillight assembly, ensures the difference in size between the through-type taillight and the tailgate, satisfies the absorption of thermal expansion and contraction in the Y direction, and solves the problem of through-type taillight cracking caused by stress concentration.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, and in particular to a structure and method for installing a through-type taillight on a car's rear tailgate. Background Technology

[0002] Because full-width taillights meet both aesthetic needs and enhance driving safety, they are increasingly favored by consumers. However, some consumers prefer larger vehicles, inevitably leading to increasingly longer full-width taillights, typically reaching 1.4 meters in width. This results in greater weight, more complex structure, and a longer fitting area, increasing the difficulty of matching and assembling, and making them more prone to cracking, directly impacting customer purchasing decisions.

[0003] Existing positioning solutions for through-type taillights typically involve positioning pins engaging with positioning holes on the tailgate. For example, existing technology discloses a through-type taillight mounting structure where the tailgate assembly has a recess for embedding the through-type taillight. The through-type taillight has multiple positioning pins extending at intervals towards the bottom of the recess along the vehicle width direction. The positioning pins engage with positioning holes at the bottom of the recess to form a limiting engagement in both the vehicle width and height directions. The through-type taillight has mounting bolts at intervals along the vehicle width direction, which engage with mounting holes at corresponding positions on the tailgate assembly.

[0004] The above method cannot avoid interference with the tailgate flange during assembly, resulting in unevenness and difficulty in fitting the headlight positioning pins with the small holes, making it time-consuming and labor-intensive for employees. In addition, the mounting bolts for the taillights are fixed to the housing by pre-embedding without any adjustment range; with changes in external temperature, and with a constant coefficient of thermal expansion, the longer the taillight, the greater the expansion, which cannot release the changes in length and stress, easily leading to taillight cracking. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a structure and method for installing a through-type taillight on a car's rear tailgate. This structure and method can prevent interference during the assembly of the through-type taillight, ensure the proper fit between the through-type taillight and the rear tailgate, absorb the thermal expansion and contraction of the through-type taillight in the Y direction, release stress, and solve the problem of cracking caused by stress concentration.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] In a first aspect, embodiments of the present invention provide a through-type taillight mounting structure for a car tailgate, including a through-type taillight and a tailgate. The through-type taillight is provided with multiple positioning ribs arranged along the vehicle width and height directions. The tailgate is provided with a limiting countersunk platform adapted to the positioning ribs to limit the Y and Z directions of the through-type taillight. Multiple auxiliary limiting blocks are evenly arranged on the Z-direction surface of the rear housing of the through-type taillight. The auxiliary limiting blocks abut against the flange of the side wall of the tailgate.

[0008] The rear housing of the through taillight is equipped with multiple bolt bases, each bolt base having an opening in the Y direction. The bolt base is used to assemble bolts, and the bolts are engaged with the bolt bases in the Z direction with a set gap in the Y direction, so that the thermal expansion and contraction of the through taillight can be adjusted and stress released by the slight movement of the bolts in the Y direction of the bolt base.

[0009] As a further implementation, the positioning rib is integrally injection molded with the rear shell, and the positioning rib includes a rib body and a plurality of reinforcing ribs evenly distributed along the circumference of the rib body.

[0010] As a further implementation, the reinforcing ribs are arranged in a cross shape.

[0011] As a further implementation, at least two bolt bases are provided near the end of the through taillight.

[0012] As a further implementation, the remaining bolt bases are arranged in an upper and lower cross pattern along the vehicle width direction at the through taillight.

[0013] As a further implementation, the bolt is assembled on the bolt base to form a bolt fixing point, and the bolt fixing point is fitted with a flexible sealing block.

[0014] As a further implementation, the tailgate is provided with a groove along the width of the vehicle for mounting a through taillight, and a vertical limiting platform is provided in the middle of the groove, and horizontal limiting platforms are provided at both ends of the groove.

[0015] As a further implementation, the groove is also provided with mounting holes for fitting bolts.

[0016] As a further implementation, the tailgate is made of an inner and outer plastic panel by injection molding, and the mounting points for the through taillights are all located on the outer panel.

[0017] Secondly, embodiments of the present invention also provide an assembly method for a through-type taillight mounting structure for a car tailgate. The through-type taillight is assembled into a groove in the tailgate. The middle positioning rib of the through-type taillight is aligned with the vertical limiting recess of the tailgate to control the Y direction, and the two end positioning ribs are installed into the lateral limiting recess of the tailgate to control the Z direction. Multiple auxiliary limiting blocks abut against the side wall flange of the tailgate, and the bolt fixing points are assembled with the mounting holes of the tailgate and tightened.

[0018] The beneficial effects of this invention are as follows:

[0019] (1) The through taillight of the present invention is provided with a distinctive positioning rib, auxiliary limiting block and adjustable bolt structure along the vehicle width and vehicle height directions, which not only ensures the precise positioning of the through taillight, but also solves the problems of difficult operation and mask cracking, and can prevent interference.

[0020] (2) The through-taillight injection bolt base of the present invention has a Y-direction opening and is limited to adjustment within a certain range. In actual vehicles, it can effectively solve the problem of locking multiple fixing points, release the length change of the through-taillight in the vehicle width direction, and avoid stress concentration and taillight cracking.

[0021] (3) The middle positioning rib of the present invention cooperates with the vertical limiting sink to control the Y direction, the end positioning rib cooperates with the horizontal limiting sink to control the Z direction, and multiple auxiliary limiting blocks abut against the flange of the rear door side wall, thereby achieving precise positioning.

[0022] (4) The bolt fixing points of the present invention are provided at two ends of the taillight, and the remaining bolt fixing points are arranged in a cross pattern, which can prevent one of the installation points at the end from flipping and sinking, thus affecting the upper gap and uniformity and ensuring installation stability. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0024] Figure 1 This is a schematic diagram of the assembly of a through taillight and a rear tailgate according to one or more embodiments of the present invention;

[0025] Figure 2(a) is a front view of the through taillight according to one or more embodiments of the present invention;

[0026] Figure 2(b) is a top view of the through taillight according to one or more embodiments of the present invention;

[0027] Figure 3(a) is a schematic diagram of the intermediate positioning rib structure according to one or more embodiments of the present invention;

[0028] Figure 3(b) is a schematic diagram of the end positioning rib structure according to one or more embodiments of the present invention;

[0029] Figure 4(a) is a schematic diagram of the bolt fixing point structure according to one or more embodiments of the present invention;

[0030] Figure 4(b) is a front view of the bolt base according to one or more embodiments of the present invention;

[0031] Figure 5 This is a schematic diagram of the rear door structure according to one or more embodiments of the present invention;

[0032] Among them, 10, through taillight, 102, middle positioning rib, 103, first end positioning rib, 104, second end positioning rib, 105, bolt fixing point, 105a, bolt base, 105b, bolt, 105c, opening, 106, auxiliary limiting block.

[0033] 20. Rear door; 201. Groove; 202. Vertical limiting countersunk platform; 203. First horizontal limiting countersunk platform; 204. Second horizontal limiting countersunk platform; 205. Mounting hole; 206. Side wall flange. Detailed Implementation

[0034] Example 1:

[0035] In a typical embodiment of the present invention, such as Figures 1-5 As shown, a taillight mounting structure that runs through the rear door of a car is presented.

[0036] The conventional method for positioning a through taillight involves using a positioning pin in conjunction with a positioning hole on the tailgate. This method can cause interference between the through taillight and the tailgate flange during assembly, resulting in unevenness. Furthermore, the positioning pin and the small hole make the operation difficult. Additionally, the bolts of the through taillight are fixed to the housing through a pre-embedded method, with no adjustment range. As the external temperature changes, the through taillight is prone to cracking.

[0037] Based on this, this embodiment provides a through-type taillight mounting structure for a car's rear tailgate. The through-type taillight 10 is provided with distinctive positioning ribs in the vehicle width and height directions, and an adjustable bolt structure is provided. This not only ensures the precise positioning of the through-type taillight 10, but also prevents interference and solves the problem of cracking of the through-type taillight.

[0038] The following is a detailed description of the above-mentioned taillight mounting structure for the rear tailgate of a car, with reference to the accompanying drawings.

[0039] The taillight mounting structure of the rear door in this embodiment includes a taillight 10 and a rear door 20. The taillight 10 has multiple positioning ribs arranged along the vehicle width and height directions. The groove 201 of the rear door 20 is provided with a corresponding limiting platform, which cooperates with the positioning ribs to accurately limit the Y and Z directions of the taillight. The positioning features on the taillight 10 and the rear door 20 are large and obvious, easy to identify and easy to operate.

[0040] For ease of description, this embodiment distinguishes the positioning ribs according to different positions, but this position limitation does not affect the specific structure of the positioning ribs. As shown in Figure 2(a), this embodiment sets three positioning ribs, of which the positioning rib located in the middle of the through taillight 10 is defined as the middle positioning rib 102, the positioning rib near one end of the through taillight 10 is defined as the first end positioning rib 103, and the positioning rib near the other end of the through taillight 10 is defined as the second end positioning rib 104.

[0041] As shown in Figures 3(a) and 3(b), the intermediate positioning rib 102 is located at the center of the intermediate positioning rib 102, and the first end positioning rib 103 and the second end positioning rib 104 are positioned lower than the intermediate positioning rib 102 along the Z-axis upward.

[0042] The aforementioned positioning ribs have the same structure and are integrally injection molded with the rear housing of the taillight 10. The positioning rib includes a rib body and reinforcing ribs. The rib body protrudes from the rear housing of the taillight 10. In this embodiment, the rib body is cylindrical or frustum-shaped, and multiple reinforcing ribs are evenly arranged along the rib body at intervals, and each reinforcing rib is set along the axial direction of the rib body. The positioning rib adopts this structure, which not only has obvious structural features, but also can cooperate with the limiting countersunk platform on the tailgate 20 to achieve effective positioning.

[0043] Four reinforcing ribs are preferably provided and form a cross-shaped structure around the outside of the main body of the reinforcing rib.

[0044] like Figure 5 As shown, the tailgate 20 is provided with a groove 201 for mounting the through taillight 10. A vertical limiting recess 202 is provided in the middle of the groove 201. A first lateral limiting recess 203 is provided at one end of the groove 201, and a second lateral limiting recess 204 is provided at the other end. During assembly, the middle positioning retainer 102 is aligned and inserted into the vertical limiting recess 202 to form Y-axis control of the through taillight 10; the first end positioning retainer 103 is inserted into the first lateral limiting recess 203, and at the same time, the second end positioning retainer 104 is inserted into the second lateral limiting recess 204 to form Z-axis control of the through taillight 10.

[0045] It should be noted that the limiting platform is a recessed structure relative to the groove 201. The height of the vertical limiting platform 202 is greater than its length, while the height of the horizontal limiting platform is less than its length.

[0046] As shown in Figure 2(b), multiple auxiliary limiting blocks 106 are evenly arranged on the upper and lower Z-direction surfaces of the rear housing of the taillight 10. During the assembly process, the auxiliary limiting blocks 106 abut against the side wall flange 206 surface of the tailgate 20 to prevent interference during the assembly process.

[0047] As shown in Figure 2(a), the through taillight 10 has multiple bolt fixing points 105 arranged along the vehicle width direction. Two bolt fixing points 105 are arranged near each end of the through taillight 10, and the two bolt fixing points 105 are arranged vertically to prevent the end fixing point from flipping and sinking, affecting the upper gap and uniformity. The remaining bolt fixing points 105 are arranged crosswise along the vehicle width direction, that is, one bolt fixing point 105 is arranged higher, and its adjacent bolt fixing point 105 is arranged lower, to ensure the stability of the installation.

[0048] In this embodiment, five bolt fixing points 105 are set on each side of the center line through the taillight 10, which satisfies the assembly requirements and does not affect the arrangement of other structures.

[0049] A flexible sealing block, such as a sealing sponge block, is fitted onto the bolt fixing point 105. The bolt fixing point 105 consists of a bolt base 105a and a bolt 105b mounted on the bolt base 105a. The bolt 105b is made of metal, and the bolt base 105a is made of plastic, which is injection molded onto the rear housing of the through taillight 10. The bolt 105b is assembled onto the bolt base 105a. As shown in Figures 4(a) and 4(b), the bolt base 105a has an opening 105c in the Y direction. The bolt 105b is assembled inside the bolt base 105a, and there is a gap of ±1.5mm between the bolt 105b and the bolt base 105a in the Y direction. The bolt 105b is engaged with the bolt base 105a in the Z direction, forming an adjustable bolt structure. The thermal expansion and contraction of the through taillight 10 is adjusted and stress is released by the slight Y-direction movement of the bolt 105b in the base hole.

[0050] As shown in Figure 4(b), the opening is opened along the Y direction of the bolt base 105a, and the opening consists of three parts connected in sequence. The first part is a flared outward expansion section; the second part is the assembly section of the bolt 105b, which meets the requirements of being snapped into the bolt 105b in the Z direction and having a gap in the Y direction; the dimension of the connection end between the outward expansion section and the assembly section is slightly smaller than the Z direction dimension of the assembly section; the Z direction dimension of the third part is also smaller than the Z direction dimension of the assembly section. The above opening structure not only facilitates the installation of the bolt 105b, but also meets the requirements of thermal expansion and contraction of the taillight 10.

[0051] like Figure 5 As shown, the rear tailgate 20 also has mounting holes 205 in the groove 201, which correspond one-to-one with the bolt fixing points 105. The rear tailgate 20 consists of an inner panel and an outer panel, both made of plastic, and is formed by injection molding. The mounting points for the through taillight 10 are all on the outer panel of the rear tailgate 20, and the DTS only matches the outer panel. The Y0 part of the rear tailgate 20 is provided with a vertical recessed platform that matches the middle positioning rib 102 of the through taillight 10, and the two ends are provided with lateral limiting recessed platforms that match the end positioning ribs. The features are obvious, the operation is convenient, and it saves time and cost.

[0052] The assembly process of the through-type taillight mounting structure for the rear tailgate of the automobile in this embodiment is as follows:

[0053] The through taillight 10 is installed in the groove 201 on the tailgate 20. The middle positioning rib 102 of the through taillight 10 is aligned with the vertical limiting platform 202 of the tailgate 20 to control the Y direction. The first end positioning rib 103 is installed in the first horizontal limiting platform 203, and the second end positioning rib 104 is installed in the second horizontal limiting platform 204 to control the Z direction. Multiple auxiliary limiting blocks 106 abut against the side wall flange 206 of the tailgate 20. The mounting bolt fixing point 105 is assembled and tightened with multiple mounting holes 205 on the tailgate 20.

[0054] By cooperating with the positioning rib and the limiting platform, cooperating with the auxiliary limiting block 106 and the side wall of the rear door 20, and cooperating with the bolt fixing point 105 and the mounting hole 205, the matching and precise positioning of the through taillight 10 is achieved, ensuring the accuracy and consistency requirements of the surrounding fit, while preventing assembly interference.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A taillight mounting structure that runs through the rear of a car tailgate, characterized in that, The device includes a through taillight and a tailgate. The through taillight has multiple positioning ribs arranged along the width and height of the vehicle. The tailgate has a limiting platform that matches the positioning ribs to limit the Y and Z directions of the through taillight. The rear housing of the through taillight has multiple auxiliary limiting blocks evenly arranged on the Z-direction surface. The auxiliary limiting blocks abut against the flange of the side wall of the tailgate. The rear housing of the through taillight is equipped with multiple bolt bases, each bolt base having an opening in the Y direction. The bolt base is used to assemble bolts, and the bolts are engaged with the bolt bases in the Z direction with a set gap in the Y direction, so that the thermal expansion and contraction of the through taillight can be adjusted and stress released by the slight movement of the bolts in the Y direction of the bolt base.

2. The taillight mounting structure for a car rear tailgate according to claim 1, characterized in that, The positioning rib is integrally injection molded with the rear shell, and the positioning rib includes a rib body and multiple reinforcing ribs evenly distributed along the circumference of the rib body.

3. The through-type taillight mounting structure for a car rear tailgate according to claim 2, characterized in that, The reinforcing ribs are arranged in a cross shape.

4. The through-type taillight mounting structure for a car tailgate according to claim 1, characterized in that, At least two bolt bases are provided near the end of the through taillight.

5. The through-type taillight mounting structure for a car rear tailgate according to claim 4, characterized in that, The remaining bolt bases are arranged in an upper and lower cross pattern along the width of the vehicle at the through taillight.

6. A taillight mounting structure for a car rear tailgate according to claim 1, 4, or 5, characterized in that, The bolt is assembled on the bolt base to form a bolt fixing point, and a flexible sealing block is fitted on the bolt fixing point.

7. The taillight mounting structure for a car rear tailgate according to claim 1, characterized in that, The tailgate has a groove along the width of the vehicle for mounting a through taillight. A vertical limiting platform is provided in the middle of the groove, and horizontal limiting platforms are provided at both ends of the groove.

8. The through-type taillight mounting structure for a car rear tailgate according to claim 7, characterized in that, The groove is also provided with mounting holes for fitting bolts.

9. A taillight mounting structure for a car rear tailgate according to claim 1, 7, or 8, characterized in that, The tailgate is made of an inner and outer plastic panel, which are injection molded together. The mounting points for the through taillights are all located on the outer panel.

10. An assembly method for a through-type taillight mounting structure for a car rear tailgate according to any one of claims 1-9, characterized in that, The through taillight is installed in the groove of the tailgate. The middle positioning shank of the through taillight is aligned with the vertical limiting recess of the tailgate to control the Y direction. The two end positioning shanks are installed in the horizontal limiting recess of the tailgate to control the Z direction. Multiple auxiliary limiting blocks abut against the side wall flange of the tailgate. The bolt fixing points are assembled with the mounting holes of the tailgate and tightened.

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