Car lamp sealing structure

Abstract

The utility model discloses a car lamp sealing structure which comprises a first sealing structure and a second sealing structure, the first sealing structure is arranged around a lens opening in a lens and used for connecting a lamp shell with the inner side connecting position of the lens in a sealing mode, and the lens opening is communicated with a radar cavity of a car lamp. The second sealing structure is arranged around the outer side of the automobile lamp and used for connecting the lamp shell with the outer side connecting position of the lens in a sealing mode. The first sealing structure comprises a first glue groove and a glue fixing support, the first glue groove is formed in the side, close to the radar cavity, of the lamp shell, one end of the glue fixing support adheres to the interior of the first glue groove through a first sealing glue layer, the other end of the glue fixing support is fixedly connected to the side face of the lens, and a second sealing glue layer is arranged on the outer side of the position, connected with the lens, of the glue fixing support. According to the automobile lamp sealing structure, the sealing reliability of the opening position of the lens on the automobile lamp is improved, mold stripping of the lens cannot be affected, and the sealing performance of the automobile lamp provided with a radar is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a sealing structure of an automobile lamp. Background Art

[0002] In the prior art, automobile headlights generally use the glue groove 02 on the lamp housing 01 and the glue leg 03 on the lens 04 to cooperate and seal, such as Figure 1 When sealing, the glue leg 03 is inserted into the glue groove 02, and then glue is injected into the glue groove 02. After the glue cools and solidifies, the lamp housing 01 and the lens 04 can be fixed and sealed.

[0003] At present, in order to facilitate the installation of laser radar on the headlights and to ensure that the performance of the laser radar is not affected, it is necessary to ensure that there is no obstruction in front of the laser radar. Therefore, it is necessary to open a hole in the lens 04 and add a glue groove structure for sealing. If the conventional sealing structure composed of glue legs 03 and glue grooves 02 is used, the glue legs 03 and the lens 04 need to be an integrated structure. If the glue legs are installed on the lens around the lens opening, the draft angle is too large and cannot meet the lens demolding requirements. The demolding direction of the lens cannot be changed due to the requirements of the shape.

[0004] In summary, how to achieve sealing of the lens opening position on the headlight close to the laser radar has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] In view of this, the utility model provides a vehicle lamp sealing structure, which improves the sealing reliability of the lens opening position on the vehicle lamp, does not affect the demolding of the lens, and ensures the sealing performance of the vehicle lamp equipped with a radar.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A vehicle lamp sealing structure, comprising:

[0008] a first sealing structure, disposed around a lens opening on the lens, for sealing a connection between the lamp housing and the inner side of the lens, wherein the lens opening is in communication with the radar cavity of the vehicle lamp;

[0009] A second sealing structure is provided around the outer side of the vehicle lamp and is used to seal the outer connection position between the lamp housing and the lens;

[0010] The first sealing structure includes a first glue groove and a glue fixing bracket. The first glue groove is arranged on the side of the lamp housing close to the radar cavity. One end of the glue fixing bracket is bonded to the first glue groove through a first sealing glue layer, and the other end is fixedly connected to the side of the lens. A second sealing glue layer is provided on the outside of the position where the glue fixing bracket is connected to the lens.

[0011] Optionally, the second sealing structure includes a second glue groove and a glue leg provided on the lens, and the end of the glue leg is connected to the second glue groove through a third sealing glue layer;

[0012] The second glue groove is arranged on a side of the lamp housing away from the radar cavity.

[0013] Optionally, the second sealant layer is filled in a sealant cavity surrounded by the outer decorative frame of the headlight, the lens and the glue fixing bracket, the opening of the sealant cavity is arranged between the outer decorative frame of the headlight and the glue fixing bracket, and a sealant plate is provided at the opening position of the sealant cavity.

[0014] Optionally, the cross section of the rubber baffle is a T-shaped surface, an L-shaped surface or an I-shaped surface.

[0015] Optionally, one end of the rubber baffle is clamped on the outer decorative frame of the headlight, and the other end is clamped on the rubber fixing bracket.

[0016] Optionally, the adhesive fixing bracket is welded to the lens;

[0017] The adhesive fixing bracket and the lens are welded by ultrasonic welding.

[0018] Optionally, the cross section of the adhesive fixing bracket is L-shaped, the side surface of one end of the adhesive fixing bracket is connected to the lens, and the other end is bonded to the first sealant layer.

[0019] Optionally, the depth of the first sealant layer is greater than two-thirds of the depth of the first sealant groove, and the length of the glue fixing bracket in the first sealant layer is not less than one-half of the depth of the first sealant layer.

[0020] Optionally, the depth of the third sealant layer is greater than two-thirds of the depth of the second sealant groove, and the length of the sealant leg connected to the third sealant layer is not less than one-half of the depth of the third sealant layer.

[0021] Optionally, the rubber legs and the lens are an integrally formed structure.

[0022] It can be seen from the above technical solution that the vehicle lamp sealing structure provided by the present invention is sealed by arranging a first glue groove, a glue fixing bracket and a second sealing glue layer for use in conjunction at the lens opening position of the radar cavity. One end of the glue fixing bracket is sealed by the first sealing glue layer filled in the first glue groove, and the other end is sealed by the second sealing glue layer covering the outside of the lens connection gap, thereby achieving sealing around the lens opening that cannot be sealed using the sealing structure commonly used in the prior art. This sealing structure is simple, the sealing is reliable, and it will not affect the demolding of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the sealing connection structure between the lamp housing and the lens in the prior art;

[0025] Figure 2 A schematic structural diagram of a vehicle lamp provided by an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 A schematic cross-sectional view of the headlight at the AA position;

[0027] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure of part B in FIG.

[0028] Figure 5 for Figure 3 A schematic diagram of the partially enlarged structure of part C in FIG.

[0029] Figure 6 A structural diagram of the location of the sealing rubber cavity provided in one embodiment of the present utility model;

[0030] Figure 7 A structural diagram of the location of the sealing rubber cavity provided by another embodiment of the present utility model;

[0031] Figure 8 A structural diagram of the location of the sealing rubber cavity provided by another embodiment of the present utility model;

[0032] Figure 9 This is a schematic diagram of the clamping structure of the rubber baffle, the outer decorative frame of the headlight, and the rubber fixing bracket provided in an embodiment of the present utility model.

[0033] in:

[0034] 01. Lamp housing, 02. Glue groove, 03. Glue legs, 04. Lens,

[0035] 1. Lamp housing,

[0036] 101, second glue tank, 102, first glue tank,

[0037] 2. Lens,

[0038] 201, rubber legs, 202, lens opening,

[0039] 3. Car lamp outer decorative frame,

[0040] 301, rubber-blocking arm plate, 302, limiting end, 303, first limiting buckle,

[0041] 4. Lamp cavity,

[0042] 5. Radar cavity,

[0043] 6. The third sealant layer,

[0044] 7. The first sealant layer,

[0045] 8. Glue fixing bracket,

[0046] 801, the second limit buckle,

[0047] 9. Rubber plate,

[0048] 10. The second sealant layer,

[0049] 11. Sealant cavity. DETAILED DESCRIPTION

[0050] The utility model discloses a vehicle lamp sealing structure, which improves the sealing reliability of a lens opening position on the vehicle lamp, does not affect the demoulding of the lens, and ensures the sealing performance of the vehicle lamp provided with a radar.

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] See Figures 2 to 5 The sealing structure of the vehicle lamp of the present invention includes a first sealing structure and a second sealing structure. The first sealing structure is arranged around the lens opening 202, and is used to seal the inner connection position between the lamp housing 1 and the lens 2. The lens opening 202 is opened at the front end of the radar cavity 5 of the vehicle lamp. The lens opening 202 is connected to the radar cavity 5, thereby ensuring that the front of the laser radar set in the radar cavity 5 is unobstructed. The second sealing structure is arranged around the outside of the vehicle lamp, and is used to seal the outer connection position between the lamp housing 1 and the lens 2. The inner side of the lens 2 is the edge position of the lens 2 close to the lens opening 202, and the outer side of the lens 2 is the edge position of the lens 2 away from the lens opening 202.

[0053] The second sealing structure is arranged around the outer side of the first sealing structure. The first sealing structure includes a first glue groove 102 and a glue fixing bracket 8, such as Figure 3 and Figure 5 As shown, the first glue groove 102 is provided on the side of the lamp housing 1 close to the radar cavity 5. One end of the glue fixing bracket 8 is bonded to the first glue groove 102 through the first sealant layer 7, and the other end is fixedly connected to the side of the lens 2. A second sealant layer 10 is provided outside the position where the glue fixing bracket 8 is connected to the lens 2. The second sealant layer 10 covers the outside of the gap where the glue fixing bracket 8 is connected to the lens 2, and is used to achieve sealing of the connection position between the glue fixing bracket 8 and the lens 2. The first sealing structure is provided around the lens opening 202, which is an opening provided on the lens 2, and is provided to facilitate installation of the laser radar in the radar cavity 5 to ensure good performance.

[0054] The vehicle lamp sealing structure of the present invention is sealed by arranging a first glue groove 102, a glue fixing bracket 8 and a second sealing glue layer 10 for use in conjunction at the position of the lens opening 202 at the front end of the radar cavity 5. One end of the glue fixing bracket 8 is sealed by the first sealing glue layer 7 filled in the first glue groove 102, and the other end is sealed by the second sealing glue layer 10 covering the outside of the connection gap between the glue fixing bracket 8 and the lens 2, thereby achieving sealing around the lens opening 202 that cannot be sealed using the sealing structure in the prior art. This sealing structure is simple, reliable, and will not affect the demolding of the lens.

[0055] Specifically, the second sealing structure is Figure 1 The sealing structure includes a second glue groove 101 and a glue leg 201 provided on the lens 2, as shown in FIG. Figure 3 and Figure 4 As shown, the rubber leg 201 is integrally formed with the lens 2. The end of the rubber leg 201 is connected to the second rubber groove 101 via the third sealant layer 6, which fills the second rubber groove 101. It is understood that the second rubber groove 101 is located on the side of the lamp housing 1 away from the radar cavity 5.

[0056] In order to facilitate the molding and positioning of the second sealant layer 10, the second sealant layer 10 is filled in the sealant cavity 11 surrounded by the lamp outer decorative frame 3, the lens 2 and the glue fixing bracket 8, as shown in FIG. Figure 6 As shown, the opening of the sealing glue cavity 11 is located between the exterior decorative frame 3 and the glue fixing bracket 8. A glue blocking plate 9 is provided at the opening of the sealing glue cavity 11. The exterior decorative frame 3 includes a glue blocking arm 301 and a stopper 302. The stopper 302 is located at the end of the exterior decorative frame 3 near the lens 2. The end face of the stopper 302 presses against the surface of the lens 2 away from the glue fixing bracket 8. The glue blocking arm 301 is connected to the main frame of the exterior decorative frame 3 and surrounds the sealing glue cavity 11.

[0057] In one embodiment, the cross section of the rubber baffle 9 is a T-shaped surface. Figure 6 In another embodiment, the cross section of the rubber baffle 9 is an I-shaped surface, as shown in FIG. Figure 7 In another embodiment, the cross section of the rubber baffle 9 is an L-shaped surface, as shown in FIG. Figure 8 shown.

[0058] In order to facilitate the positioning of the rubber baffle plate 9, one end of the rubber baffle plate 9 is clamped on the outer decorative frame 3 of the headlight, and the other end is clamped on the rubber fixing bracket 8. Specifically, a first limiting buckle 303 is provided on the surface of the rubber baffle arm plate 301 close to the rubber fixing bracket 8, and a second limiting buckle 801 is provided on the surface of the rubber fixing bracket 8 close to the rubber baffle arm plate 301. The first limiting buckle 303 is used to limit the position of the end of the rubber baffle plate 9 close to the rubber baffle arm plate 301, and the second limiting buckle 801 is used to limit the position of the end of the rubber baffle plate 9 close to the rubber fixing bracket 8. Figure 9 As shown, the glue baffle 9 has two functions: first, it serves as a pre-fixation for the glue fixing bracket 8, lens 2, and headlight outer decorative frame 3 before the glue in the second sealant layer 10 has completely cooled; second, it applies rightward and downward pressure to the glue in the second sealant layer 10, ensuring that the gap between the glue fixing bracket 8 and the lens 2 is fully filled with glue, while also shielding and protecting the glue.

[0059] The adhesive fixing bracket 8 is welded to the lens 2. In one embodiment, the adhesive fixing bracket 8 and the lens 2 are ultrasonically welded. Ultrasonic welding requires minimal space, is easy to operate, and is minimally challenging, facilitating pre-fixation of the adhesive fixing bracket 8 and meeting pre-fixation requirements. The adhesive fixing bracket 8 is a separate component that is pre-fixed to the lens 2 by welding. The gap between the mounting holes is sealed and completely fixed by a second sealant layer 10.

[0060] In order to facilitate connection, the cross section of the adhesive fixing bracket 8 is L-shaped, such as Figure 5 As shown, the side surface of one end of the adhesive fixing bracket 8 is connected to the lens 2, and the other end is bonded to the first sealant layer 7. It can be understood that in order to improve the connection reliability between the adhesive fixing bracket 8 and the lens 2, the side portion of the adhesive fixing bracket 8 in contact with the lens 2 is arranged at a position corresponding to the lens 2, as shown in FIG. Figure 5 As shown, the glue fixing bracket 8 and the lens 2 are reliably welded and the gap between them is reduced.

[0061] In order to improve the connection reliability and sealing between the glue fixing bracket 8 and the first glue groove 102, the first glue groove 102 is filled with a first sealing glue layer 3, wherein the depth of the first sealing glue layer 3 is greater than two-thirds of the depth of the first glue groove 102, and the length of the glue fixing bracket 8 located in the first sealing glue layer 7 is not less than one-half of the depth of the first sealing glue layer 7.

[0062] In order to improve the connection reliability and sealing between the glue leg 201 and the second glue groove 101, the second glue groove 101 is filled with a third sealing glue layer 6. The depth of the third sealing glue layer 6 is greater than two-thirds of the depth of the second glue groove 101, and the length of the glue leg 201 connected to the third sealing glue layer 6 is not less than one-half of the depth of the third sealing glue layer 6.

[0063] In the headlight sealing structure of the present invention, due to the mold ejection of the lens 2, the structure of the glue groove plus lens glue leg in the prior art cannot be used around the lens opening 202 of the radar cavity 5. Therefore, a structure of a glue fixing bracket 8, a first glue groove 102 and a lens 2 is provided. The glue fixing bracket 8 and the lens 2 are provided separately, so that a second sealing glue layer 10 for sealing and fixing is provided on the outside of the welding position between the glue fixing bracket 8 and the lens 2. In order to accommodate the second sealing glue layer 10, the glue fixing bracket 8, the lens 2 and the headlight outer decorative frame 3 are surrounded by a sealing glue cavity 11. The headlight sealing structure of the present invention adopts the first sealing structure to seal on the inner side where the lamp housing 1 is connected to the lens 2, and adopts the second sealing structure to seal on the outer side where the lamp housing 1 is connected to the lens 2, so that the lamp housing 1 and the lens 2 can form a sealed lamp cavity 4. The headlight sealing structure of the present invention achieves reliable sealing of headlights equipped with radar in the center of the headlight.

[0064] In the description of this solution, it should be understood that the terms "upper", "lower", "vertical", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on this solution.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this solution, "plurality" means two or more, unless otherwise specifically defined.

[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0067] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle lamp sealing structure, characterized in that: include: a first sealing structure, disposed around a lens opening on the lens, for sealing a connection between the lamp housing and the inner side of the lens, wherein the lens opening is in communication with the radar cavity of the vehicle lamp; A second sealing structure is provided around the outer side of the vehicle lamp and is used to seal the outer connection position between the lamp housing and the lens; The first sealing structure includes a first glue groove and a glue fixing bracket. The first glue groove is arranged on the side of the lamp housing close to the radar cavity. One end of the glue fixing bracket is bonded to the first glue groove through a first sealing glue layer, and the other end is fixedly connected to the side of the lens. A second sealing glue layer is provided on the outside of the position where the glue fixing bracket is connected to the lens.

2. The vehicle lamp sealing structure according to claim 1, characterized in that: The second sealing structure includes a second glue groove and a glue leg provided on the lens, and the end of the glue leg is connected to the second glue groove through a third sealing glue layer; The second glue groove is arranged on a side of the lamp housing away from the radar cavity.

3. The vehicle lamp sealing structure according to claim 1, characterized in that: The second sealant layer is filled in the sealant cavity surrounded by the outer decorative frame of the headlight, the lens and the glue fixing bracket. The opening of the sealant cavity is set between the outer decorative frame of the headlight and the glue fixing bracket. A sealant plate is set at the opening position of the sealant cavity.

4. The vehicle lamp sealing structure according to claim 3, characterized in that: The cross section of the rubber baffle is a T-shaped surface, an L-shaped surface or an I-shaped surface.

5. The vehicle lamp sealing structure according to claim 3, characterized in that: One end of the rubber baffle is clamped on the outer decorative frame of the headlight, and the other end is clamped on the rubber fixing bracket.

6. The vehicle lamp sealing structure according to claim 1, characterized in that: The adhesive fixing bracket is welded to the lens; The adhesive fixing bracket and the lens are welded by ultrasonic welding.

7. The vehicle lamp sealing structure according to claim 1, characterized in that: The cross section of the adhesive fixing bracket is L-shaped, the side surface of one end of the adhesive fixing bracket is connected to the lens, and the other end is bonded to the first sealant layer.

8. The vehicle lamp sealing structure according to claim 1, characterized in that: The depth of the first sealant layer is greater than two-thirds of the depth of the first sealant groove, and the length of the sealant fixing bracket in the first sealant layer is not less than one-half of the depth of the first sealant layer.

9. The vehicle lamp sealing structure according to claim 2, characterized in that: The depth of the third sealing adhesive layer is greater than two-thirds of the depth of the second adhesive groove, and the length of the adhesive leg connected to the third sealing adhesive layer is not less than one-half of the depth of the third sealing adhesive layer.

10. The vehicle lamp sealing structure according to claim 2, characterized in that: The rubber legs and the lens are an integrally formed structure.

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