Adhesion structure of assembled automobile exterior decoration injection molding part

Abstract

The utility model discloses an adhesion structure of an assembly type automobile exterior decoration injection molding part, the automobile exterior decoration injection molding part comprises a decoration outer plate and an inner framework which are connected with each other, one side of the decoration outer plate facing the inner framework is provided with a first groove, one side of the inner framework facing the decoration outer plate is provided with a second groove, and the first groove and the second groove are communicated with each other. The first groove is opposite to the second groove, the first groove and the second groove jointly form a filling area of an adhesive, and the groove surface of the first groove and the groove surface of the second groove are provided with protruding structures. The filling area formed by the first groove and the second groove is coated with the adhesive, the groove face of the first groove and the groove face of the second groove are made to make contact with the adhesive, the protruding structure is made to make contact with the adhesive, the contact area is increased, the adhesive force of the adhesive is increased, and the decorative outer plate and the inner framework are stably connected.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molded parts assembly, and in particular to an adhesive structure for assembled automotive exterior injection molded parts. Background Technology

[0002] Automotive exterior injection molded parts consist of an outer decorative panel and an inner frame, which are assembled using adhesive bonding. Currently, double-sided adhesive is commonly used to assemble the outer decorative panel and inner frame. However, with prolonged use, the outer decorative panel and inner frame are prone to separation when assembled using double-sided adhesive. Utility Model Content

[0003] The main purpose of this utility model is to provide an adhesive structure for assembled automotive exterior injection molded parts, which aims to effectively solve the problem of easy separation between the decorative outer panel and the inner frame.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model discloses an adhesive structure for an assembled automotive exterior injection molded part. The automotive exterior injection molded part includes an interconnected decorative outer panel and an inner frame. A first groove is provided on the side of the decorative outer panel facing the inner frame, and a second groove is provided on the side of the inner frame facing the decorative outer panel. The first groove and the second groove are directly opposite each other and together form a filling area for adhesive. A protruding structure is provided on the groove surface of the first groove and the second groove.

[0006] Compared with the prior art, the present invention discloses an adhesive structure for an assembled automotive exterior injection molded part. An adhesive is applied to the filling area formed by the first groove and the second groove. In addition to allowing the groove surfaces of the first groove and the second groove to contact the adhesive, the protruding structure also contacts the adhesive, increasing the contact area and the adhesive force of the adhesive. This ensures a stable connection between the decorative outer panel and the inner frame and effectively prevents the decorative outer panel and the inner frame from separating.

[0007] In a preferred embodiment, the protruding structures of the first groove and the protruding structures of the second groove are arranged vertically opposite each other.

[0008] In a preferred embodiment, the protruding structure is serrated.

[0009] In a preferred embodiment, the protruding structure is wavy.

[0010] In a preferred embodiment, male stop openings are provided on both sides of the first groove; female stop openings are provided on both sides of the second groove; the male stop openings and the female stop openings are engaged to form a stop opening structure.

[0011] In a preferred embodiment, the bottom groove surface and the side groove surface of the first groove form part of the male stop structure; the female stop is located outside the second groove.

[0012] In a preferred embodiment, the stop structure has a beveled mating portion; the cross-sectional shape of the first groove is an isosceles trapezoidal structure with a smaller top and a larger bottom; the side groove surface of the first groove mates with the female stop to form the beveled mating portion.

[0013] To better understand and implement this invention, the following diagram, in conjunction with the accompanying drawings, provides a detailed description. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a cross-sectional schematic diagram of the bonding structure of assembled automotive exterior injection molded parts;

[0016] Figure 2 This is an exploded cross-sectional view of the adhesive structure of an assembled automotive exterior injection molded part.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Decorative outer panel, 11. First groove, 12. Male stop, 2. Inner frame, 21. Second groove, 22. Female stop, 3. Protruding structure, 4. Stop structure, 41. Angled mating part, 5. Adhesive. Detailed Implementation

[0019] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0020] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0021] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0022] See Figure 1 and Figure 2 This utility model discloses an adhesive structure for an assembled automotive exterior injection molded part. The automotive exterior injection molded part includes an interconnected decorative outer panel 1 and an inner frame 2. The decorative outer panel 1 has a first groove 11 on the side facing the inner frame 2, and the inner frame 2 has a second groove 21 on the side facing the decorative outer panel 1. The first groove 11 and the second groove 21 are directly opposite each other. The first groove 11 and the second groove 21 together constitute the filling area of ​​the adhesive 5. The groove surfaces of the first groove 11 and the second groove 21 are provided with protruding structures 3.

[0023] Compared with the prior art, the present invention discloses an adhesive structure for an assembled automotive exterior injection molded part. In this structure, an adhesive is applied to the filling area formed by the first groove 11 and the second groove 21. In addition to allowing the groove surfaces of the first groove 11 and the second groove 21 to contact the adhesive 5, the protruding structure 3 also contacts the adhesive, thereby increasing the contact area and the adhesive force of the adhesive 5. This ensures a stable connection between the decorative outer panel 1 and the inner frame 2, effectively preventing the decorative outer panel 1 and the inner frame 2 from separating.

[0024] In this embodiment, the adhesive 5 can be glue, semi-solid adhesive, etc.

[0025] In this embodiment, the protruding structure 3 of the first groove 11 and the protruding structure 3 of the second groove 21 are arranged vertically opposite each other, that is, the protruding structure 3 is distributed on the bottom groove surface of the first groove 11 and the bottom groove surface of the second groove 21. This increases the contact area with the adhesive 5, facilitates the injection molding and demolding of the decorative outer panel 1 and the inner skeleton 2, and facilitates production and manufacturing.

[0026] In this embodiment, the protruding structure 3 is serrated or wavy, forming a continuously undulating structure, which greatly increases the force required to separate the decorative outer panel 1 and the inner skeleton 2, and increases the adhesion of the adhesive.

[0027] In this embodiment, male stop 12 is provided on both sides of the first groove 11; female stop 22 is provided on both sides of the second groove 21; the male stop 12 and the female stop 22 are engaged to form a stop structure 4. On the one hand, the stop structure 4 can effectively prevent the adhesive 5 from overflowing outside the first groove 11 and the second groove 12 when the decorative outer panel 1 and the inner frame 2 are pressed together, thereby reducing the contact area between the adhesive and the first groove 11, the second groove 21 and the protruding structure 3; on the other hand, the stop structure 4 enables the decorative outer panel 1 and the inner frame 2 to achieve precise positioning.

[0028] Furthermore, the bottom groove surface and side groove surface of the first groove 11 constitute part of the structure of the male stop 12; the female stop 22 is located outside the second groove 21. The male stop 12 is formed by utilizing the structural features of the first groove 11 itself, so that the first groove 11 and the female stop 22 are connected in a concave-convex fit manner.

[0029] Furthermore, the stop structure 4 has a beveled mating part 41; the cross-sectional shape of the first groove 11 is an isosceles trapezoidal structure with a smaller top and a larger bottom; the side groove surface of the first groove 11 and the female stop 22 cooperate to form the beveled mating part 41; the setting of the beveled mating part 41 increases the width of the outer side of the first groove 11, so that when the assembly begins, due to the increased width of the outer side of the first groove 11, the first groove 11 can easily achieve a concave-convex insertion with the female stop 22, which effectively facilitates the concave-convex mating installation of the decorative outer panel 1 and the inner frame 2.

[0030] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. An adhesive structure for an assembled automotive exterior injection molded part, the automotive exterior injection molded part comprising interconnected decorative outer panels and an inner frame, characterized in that, The decorative outer panel has a first groove on the side facing the inner frame, and the inner frame has a second groove on the side facing the decorative outer panel. The first groove and the second groove are directly opposite each other and together form the filling area of ​​the adhesive. The groove surfaces of the first groove and the second groove are provided with protruding structures.

2. The bonding structure of the assembled automotive exterior injection molded parts according to claim 1, characterized in that: The protruding structures of the first groove and the second groove are arranged vertically opposite each other.

3. The bonding structure of the assembled automotive exterior injection molded parts according to claim 1, characterized in that: The protruding structure is serrated.

4. The bonding structure of the assembled automotive exterior injection molded parts according to claim 1, characterized in that: The protruding structure is wavy in shape.

5. The bonding structure of the assembled automotive exterior injection molded parts according to claim 1, characterized in that: The first groove has male stop openings on both sides; The second groove has female stops on both sides; The male stop and the female stop fit together to form a stop structure.

6. The bonding structure of the assembled automotive exterior injection molded part according to claim 5, characterized in that: The bottom groove surface and the side groove surface of the first groove form part of the structure of the male stop; The female stop is located on the outside of the second groove.

7. The bonding structure of the assembled automotive exterior injection molded parts according to claim 6, characterized in that: The stop structure has a beveled mating part; The first groove has an isosceles trapezoidal structure with a smaller top and a larger bottom; the side groove surface of the first groove and the female stop form the inclined mating part.

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