Bonding structure for automobile ceiling decorating plate

Abstract

The utility model discloses a bonding structure for a decorative plate of an automobile ceiling, which is characterized in that a first glue path and a second glue path are arranged between the ceiling and the decorative plate, and glue for bonding is coated on the first glue path and the second glue path; wherein the first glue path is distributed along the outer contour of the decorative plate and is annularly arranged, and the second glue path is located on the inner side of the first glue path and is arranged in the length direction of the decorative plate. According to the utility model, the first glue path is arranged along the outer edge of the decorative plate, and the second glue path is arranged on the inner side of the first glue path, so that the middle area of the decorative plate can also be bonded with the metal plate of the automobile ceiling. After the decorative plate is heated, the middle part of the decorative plate does not arch upwards due to a bonding position, so that the problem that the middle part of the decorative plate is arched upwards due to thermal expansion of the plastic decorative plate can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exterior decoration parts, in particular to a bonding structure for automobile ceiling decorative panels. Background Art

[0002] The car roof decorative panel is a plastic component installed on the car roof for decoration, which is connected to the sheet metal of the car roof. Currently, there are two connection schemes: gluing and snap-on. The gluing means gluing the decorative panel to the sheet metal of the car roof by glue.

[0003] However, in the existing gluing scheme, glue is only applied along the edge of the decorative panel, and there is no glue bonding between the middle area of ​​the decorative panel and the car roof. Since the decorative panel is made of plastic, after being glued to the car roof, the decorative panel expands due to heat, but the glue bonding limits the expansion of the decorative panel in the length and width directions, which causes the expansion of the decorative panel to be converted into deformation in the height direction, which in turn causes the middle part of the decorative panel to bulge upward, which may eventually cause the decorative panel to fall off the roof. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a bonding structure for automobile ceiling decorative panels, which is used to solve the problem in the prior art that the central part of the plastic decorative panel bulges due to thermal expansion.

[0005] The utility model solves the technical problem by adopting a technical solution that is a bonding structure for a car roof decorative panel, which is used to bond the decorative panel to the car roof, wherein the car roof comprises a first bonding area between a front windshield and a roof glass, and a second bonding area between the roof glass and a rear windshield; a first glue path and a second glue path are both provided on the first bonding area and the second bonding area, or a first glue path and a second glue path are provided on the decorative panel; glue for bonding is applied on the first glue path and the second glue path;

[0006] Wherein, the first glue path is distributed along the outer contour of the decorative plate and is arranged in a ring shape, and the second glue path is located on the inner side of the first glue path and is arranged along the length direction of the decorative plate.

[0007] Furthermore, the minimum distance from any point on the first glue path to the edge of the decorative panel is the same.

[0008] Furthermore, the second glue path is arranged in a wave shape inside the first glue path along the length direction of the decorative plate.

[0009] Furthermore, the second glue path includes a plurality of glue path units arranged at intervals, any of the glue path units is arranged along the length direction of the decorative plate, and a plurality of the glue path units are arranged along the length direction of the decorative plate.

[0010] Furthermore, the second glue path includes a plurality of glue path units connected in sequence, any of the glue path units is arranged along the length direction of the decorative plate, and a plurality of the glue path units are arranged along the length direction of the decorative plate.

[0011] Furthermore, the first bonding area and the second bonding area are provided with a plurality of positioning holes, and the decorative plate is provided with positioning protrusions, and the positioning protrusions can extend into the positioning holes and abut against the side walls of the positioning holes.

[0012] Furthermore, a first positioning protrusion and a second positioning protrusion are provided on the decorative plate, and a first positioning hole and a second positioning hole are provided on the first bonding area and the second bonding area;

[0013] The first positioning protrusion has two first abutting surfaces which are opposite to each other, and the first positioning protrusion can extend into the first positioning hole and make at least one of the first abutting surfaces abut against the side wall of the first positioning hole;

[0014] The second positioning protrusion has two second abutting surfaces which are opposite to each other, and the second positioning protrusion can extend into the second positioning hole and make at least one of the second abutting surfaces abut against the side wall of the second positioning hole;

[0015] The two first abutting surfaces are arranged at two ends of the first positioning protrusion along the length direction of the decorative plate, and the two second abutting surfaces are arranged at two sides of the second positioning protrusion along the width direction of the decorative plate.

[0016] Furthermore, a second positioning protrusion is provided on the decorative plate, and the second positioning protrusion is located in the middle of the decorative plate.

[0017] Furthermore, two first positioning protrusions are arranged on the decorative plate, and the two positioning protrusions are respectively located at two ends of the decorative plate and are symmetrical about the first positioning protrusion.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] A first glue path is provided along the outer edge of the decorative plate, and a second glue path is provided inside the first glue path, so that the middle area of ​​the decorative plate can also be bonded to the sheet metal of the automobile roof. When the decorative plate is heated, the middle part thereof will not bulge upward due to the bonding position, thereby solving the problem of the middle part of the plastic decorative plate bulging upward due to the expansion of the plastic decorative plate when heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a bonding structure in an embodiment;

[0021] Figure 2 It is a structural schematic diagram of the decorative plate in the embodiment;

[0022] In the figure:

[0023] 100, decorative plate; 110, first positioning protrusion; 120, second positioning protrusion;

[0024] 200, First Rubber Road;

[0025] 300, Second rubber road. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] Please refer to Figure 1-Figure 2 The utility model discloses a bonding structure for a car roof decorative plate, which is used to bond a decorative plate 100 to a car roof, wherein the car roof comprises a first bonding area between a front windshield and a roof glass, and a second bonding area between the roof glass and a rear windshield; a first glue path 200 and a second glue path 300 are both provided in the first bonding area and the second bonding area, or the first glue path 200 and the second glue path 300 are provided on the decorative plate 100; glue for bonding is applied on the first glue path 200 and the second glue path 300;

[0028] The first glue path 200 is distributed along the outer contour of the decorative plate 100 and is arranged in a ring shape, and the second glue path 300 is located on the inner side of the first glue path 200 and is arranged along the length direction of the decorative plate 100 .

[0029] Specifically, the present application sets the first glue path 200 and the second glue path 300 on the first bonding area and the second bonding area, or sets the first glue path 200 and the second glue path 300 directly on the decorative panel 100, and applies glue on the first glue path 200 and the second glue path 300 to bond the decorative panel 100 to the car roof. In operation, the glue can be directly applied to the decorative panel 100, and then the decorative panel 100 is directly bonded to the car roof, or the glue can be applied to the car roof, and then the decorative panel 100 is covered to achieve bonding.

[0030] Importantly, the present application not only provides a first adhesive path 200 along the outer edge of the decorative panel 100, but also provides a second adhesive path 300 inside the first adhesive path 200, so that the middle area of ​​the decorative panel 100 can also be bonded to the sheet metal of the automobile roof. When the decorative panel 100 is heated, the middle part will not bulge upwards due to the bonding position, thereby solving the problem of the plastic decorative panel 100 bulging upwards due to thermal expansion.

[0031] It should be noted that the first glue path 200 and the second glue path 300 are not actual structural components, but distribution paths for applying glue.

[0032] Furthermore, the minimum distance from any point on the first glue path 200 to the edge of the decorative panel 100 is the same.

[0033] Specifically, the minimum distance from each position on the first glue path 200 to the edge of the decorative panel 100 is equal everywhere, so the direction of the first glue path 200 matches the outer edge of the decorative panel 100, so that the force at each position of the decorative panel 100 is more uniform and the bonding is more firm.

[0034] Furthermore, the second glue path 300 is arranged inside the first glue path 200 in a wave shape along the length direction of the decorative plate 100 .

[0035] Specifically, the second adhesive path 300 can be configured to be wavy so as to cover a larger area to achieve a better bonding effect.

[0036] Furthermore, the second glue path 300 includes a plurality of glue path units disposed at intervals, any of the glue path units is disposed along the length direction of the decorative plate 100 , and a plurality of the glue path units are arranged along the length direction of the decorative plate 100 .

[0037] Specifically, the second glue path 300 can also be configured as a plurality of spaced strip-shaped glue path units, which can effectively reduce the amount of glue used and reduce costs while ensuring the bonding strength.

[0038] Furthermore, the second glue path 300 includes a plurality of glue path units connected in sequence, any of the glue path units is arranged along the length direction of the decorative panel 100 , and a plurality of the glue path units are arranged along the length direction of the decorative panel 100 .

[0039] Specifically, the second adhesive path 300 can also be configured as a continuous long strip, making its construction more convenient and reducing labor costs.

[0040] Furthermore, the first adhesive area and the second adhesive area are provided with a plurality of positioning holes, and the decorative plate 100 is provided with positioning protrusions, which can extend into the positioning holes and abut against the side walls of the positioning holes.

[0041] Furthermore, a first positioning protrusion 110 and a second positioning protrusion 120 are provided on the decorative plate 100, and a first positioning hole and a second positioning hole are provided on the first bonding area and the second bonding area;

[0042] The first positioning protrusion 110 has two first abutting surfaces which are opposite to each other. The first positioning protrusion 110 can extend into the first positioning hole and make at least one of the first abutting surfaces abut against the side wall of the first positioning hole.

[0043] The second positioning protrusion 120 has two second abutting surfaces on opposite sides of each other. The second positioning protrusion 120 can extend into the second positioning hole and make at least one of the second abutting surfaces abut against the side wall of the second positioning hole.

[0044] The two first abutting surfaces are arranged at two ends of the first positioning protrusion 110 along the length direction of the decorative plate 100 , and the two second abutting surfaces are arranged at two sides of the second positioning protrusion 120 along the width direction of the decorative plate 100 .

[0045] Specifically, when the first positioning protrusion 110 extends into the first positioning hole, at least one first abutting surface abuts against the side wall of the first positioning hole to achieve the positioning of the decorative plate 100 relative to the automobile roof in the length direction. When the second positioning protrusion 120 extends into the second positioning hole, at least one second abutting surface abuts against the side wall of the second positioning hole to achieve the positioning of the decorative plate 100 relative to the automobile roof in the width direction.

[0046] Furthermore, a second positioning protrusion 120 is provided on the decorative plate 100 , and the second positioning protrusion 120 is located in the middle of the decorative plate 100 .

[0047] Two first positioning protrusions 110 are disposed on the decorative plate 100 , and the two positioning protrusions are respectively located at two ends of the decorative plate 100 and are symmetrical about the first positioning protrusion 110 .

[0048] Specifically, the second positioning protrusion 120 is disposed in the middle of the decorative plate 100 , and the two first positioning protrusions 110 are symmetrical about the second positioning protrusion 120 , so that the forces on the multiple positioning protrusions are more uniform.

[0049] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A bonding structure for a car roof decorative panel, used to bond the decorative panel to the car roof, characterized in that: The automobile roof comprises a first bonding area between the front windshield and the roof glass, and a second bonding area between the roof glass and the rear windshield; a first glue path and a second glue path are both provided on the first bonding area and the second bonding area, or a first glue path and a second glue path are provided on the decorative panel; glue for bonding is applied on the first glue path and the second glue path; Wherein, the first glue path is distributed along the outer contour of the decorative plate and is arranged in a ring shape, and the second glue path is located on the inner side of the first glue path and is arranged along the length direction of the decorative plate.

2. The bonding structure for automobile ceiling decorative panels according to claim 1, characterized in that: The minimum distance from any point on the first glue path to the edge of the decorative plate is the same.

3. The bonding structure for automobile ceiling decorative panels according to claim 1, characterized in that: The second glue path is arranged inside the first glue path in a wavy shape along the length direction of the decorative plate.

4. The bonding structure for automobile ceiling decorative panels according to claim 1, characterized in that: The second glue path includes a plurality of glue path units arranged at intervals, any of the glue path units is arranged along the length direction of the decorative plate, and a plurality of the glue path units are arranged along the length direction of the decorative plate.

5. The bonding structure for automobile ceiling decorative panels according to claim 1, characterized in that: The second glue path includes a plurality of glue path units connected in sequence, any of the glue path units is arranged along the length direction of the decorative plate, and a plurality of the glue path units are arranged along the length direction of the decorative plate.

6. The bonding structure for automobile ceiling decorative panels according to claim 1, characterized in that: The first bonding area and the second bonding area are provided with a plurality of positioning holes, and the decorative plate is provided with positioning protrusions, which can extend into the positioning holes and abut against the side walls of the positioning holes.

7. The bonding structure for automobile ceiling decorative panels according to claim 6, characterized in that: A first positioning protrusion and a second positioning protrusion are provided on the decorative plate, and a first positioning hole and a second positioning hole are provided on the first bonding area and the second bonding area; The first positioning protrusion has two first abutting surfaces which are opposite to each other, and the first positioning protrusion can extend into the first positioning hole and make at least one of the first abutting surfaces abut against the side wall of the first positioning hole; The second positioning protrusion has two second abutting surfaces which are opposite to each other, and the second positioning protrusion can extend into the second positioning hole and make at least one of the second abutting surfaces abut against the side wall of the second positioning hole; The two first abutting surfaces are arranged at two ends of the first positioning protrusion along the length direction of the decorative plate, and the two second abutting surfaces are arranged at two sides of the second positioning protrusion along the width direction of the decorative plate.

8. The bonding structure for automobile ceiling decorative panels according to claim 7, characterized in that: A second positioning protrusion is arranged on the decorative plate, and the second positioning protrusion is located in the middle of the decorative plate.

9. The bonding structure for automobile ceiling decorative panels according to claim 8, characterized in that: Two first positioning protrusions are arranged on the decorative plate, and the two positioning protrusions are respectively located at two ends of the decorative plate and are symmetrical about the first positioning protrusion.

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