Combination structure between automotive trim plastic parts

Abstract

The utility model discloses a combination structure between automotive trim plastic parts, which relates to the technical field of automotive trim parts, and comprises a map pocket outer cover and a map pocket inner cover, a plurality of groups of combination inner ribs are uniformly fixed on the inner side of the map pocket outer cover, and a plurality of groups of combination outer ribs matched with the combination inner ribs are uniformly fixed inside the map pocket inner cover. Structural adhesive is filled between the combining inner rib and the combining outer rib. According to the utility model, the structural adhesive is filled in the empty slot at the combined outer ribs of the map bag inner cover, and then the plurality of groups of combined inner ribs of the map bag outer cover are pressed into the combined outer ribs, so that the map bag outer cover and the map bag inner cover are mutually pressed and connected, and under the matching of the combined inner ribs, the combined outer ribs and the structural adhesive, the map bag inner cover and the map bag outer cover are mutually pressed and connected. Combination of automobile plastic parts can be achieved without using a hot plate or an ultrasonic welding die and matched equipment, the structural adhesive is filled between the combining ribs, no odor is generated, environmental protection and no pollution are achieved, electric energy is saved, and the problems that preheating is needed in hot plate welding, electric energy is consumed, and the odor is generated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior decoration parts, in particular to a bonding structure between automobile interior decoration plastic parts. Background Art

[0002] The connection between automobile interior plastic parts is usually to cover up the unsightly internal features, such as screws, reinforcing ribs, holes, convex and concave platforms, functional parts, electronic components, etc., to achieve the purpose of external beauty, such as car seat map pockets, glove boxes and outer panels, storage boxes and outer covers, etc.

[0003] Most of the existing automotive interior plastic parts are joined by hot plate welding or ultrasonic welding. Hot plate welding or ultrasonic welding has the problems of high equipment and mold costs (about 120,000 yuan for hot plate welding and about 800,000 yuan for ultrasonic welding), energy consumption and pollution (hot plate welding preheats for 4 hours, consumes electricity and has odor), limited product thickness (hot plate welding requires high ribs and thick products), high mold change costs (custom mold equipment, design changes require mold repair or scrapping), unstable fusion effect (hot plate welding is prone to failure under the action of temperature and external force, and has low pull-off strength). Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a bonding structure between automobile interior plastic parts to solve the technical problems in the existing technology that automobile interior plastic parts are mostly connected by hot plate welding or ultrasonic welding, which has high equipment and mold costs, high energy consumption and pollution, limited product thickness, high mold change costs, and unstable fusion effects.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a bonding structure between automobile interior plastic parts, comprising a map pocket outer cover and a map pocket inner cover, wherein a plurality of sets of bonding inner ribs are evenly fixed to the inner side of the map pocket outer cover, the bonding inner ribs being located on the inner side of the map pocket outer cover, and the plurality of sets of bonding inner ribs gradually increase in size from the inside to the outside and are evenly distributed in a rectangular ring shape;

[0006] The map bag inner cover is evenly fixed with multiple groups of combined outer ribs that match the multiple groups of combined inner ribs. The combined outer ribs are located on the inner side of the map bag inner cover, and the multiple groups of combined outer ribs gradually increase in size from the inside to the outside and are evenly distributed in a rectangular ring.

[0007] The space between the inner and outer ribs is filled with structural adhesive, which is made of silicone. The structural adhesive is filled between the inner and outer ribs using a flow controller.

[0008] By adopting the technical scheme, the plurality of combination inner ribs are arranged on the inner side of the map bag outer cover, the plurality of combination outer ribs matched with the combination inner ribs are arranged on the inner side of the map bag inner cover, the structural glue is filled in the air slot at the combination outer rib of the map bag inner cover, then the plurality of combination inner ribs of the map bag outer cover are pressed into the inside of the combination outer rib, and then the map bag outer cover and the map bag inner cover are connected by pressing each other, so that the connection is more stable under the action of the structural glue, that is, the combination between the automobile plastic parts can be realized without investing the mold and the matching equipment of the hot plate or the ultrasonic welding under the cooperation of the combination inner rib, the combination outer rib and the structural glue, the structural glue is filled between the combination ribs, no smell is generated, the environment is protected, no pollution is generated and the electric energy is saved, and the problems of preheating, power consumption and smell generated by the hot plate welding are avoided.

[0009] In conclusion, the utility model mainly has the following beneficial effects: the utility model discloses a plurality of combination inner ribs are arranged on the inner side of the map bag outer cover, a plurality of combination outer ribs matched with the combination inner ribs are arranged on the inner side of the map bag inner cover, the structural glue is filled in the air slot at the combination outer rib of the map bag inner cover, then the plurality of combination inner ribs of the map bag outer cover are pressed into the inside of the combination outer rib, and then the map bag outer cover and the map bag inner cover are connected by pressing each other, so that the connection is more stable under the action of the structural glue, that is, the combination between the automobile plastic parts can be realized without investing the mold and the matching equipment of the hot plate or the ultrasonic welding under the cooperation of the combination inner rib, the combination outer rib and the structural glue, the structural glue is filled between the combination ribs, no smell is generated, the environment is protected, no pollution is generated and the electric energy is saved, and the problems of preheating, power consumption and smell generated by the hot plate welding are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the exploded view of the whole utility model;

[0011] Figure 2 It is the enlarged sectional view of the whole utility model;

[0012] Figure 3 It is the enlarged view of A of the whole utility model; Figure 2

[0013] Figure 4 It is the front view of the map bag outer cover of the whole utility model;

[0014] Figure 5 It is the front view of the map bag inner cover of the whole utility model.

[0015] In the drawing: 1, map bag outer cover;101, combination inner rib;2, structural glue;3, map bag inner cover;301, combination outer rib. DETAILED DESCRIPTION

[0016] ​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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] The following describes an embodiment of the present invention based on its overall structure.

[0018] A bonding structure between automobile interior plastic parts, such as Figure 1-5 As shown, it includes a map pocket outer cover 1 and a map pocket inner cover 3. A plurality of sets of inner ribs 101 are evenly fixed on the inner side of the map pocket outer cover 1. The inner ribs 101 gradually increase in size from the inside to the outside and are evenly distributed in a rectangular ring.

[0019] By providing a bonding inner rib 101 on the inner side of the map pocket outer cover 1, which cooperates with the bonding outer rib 301 of the map pocket inner cover 3, and then combining with the structural adhesive 2, it is possible to connect automotive plastic parts without using a hot plate or ultrasonic welding mold and supporting equipment, thereby reducing costs and making the connection more stable. In addition, the structural adhesive 2 filled between the bonding ribs is odorless, environmentally friendly, pollution-free, and saves electricity.

[0020] A plurality of groups of outer ribs 301 are evenly fixed inside the inner cover 3 of the map pocket, and the outer ribs 301 are matched with the plurality of inner ribs 101. The outer ribs 301 gradually increase in size from the inside to the outside and are evenly distributed in a rectangular ring.

[0021] The combination of the outer ribs 301 and the inner ribs 101 of the map pocket cover 1, as well as the filling of the structural adhesive 2, also achieves the above-mentioned beneficial effects and further improves the connection stability;

[0022] The space between the inner rib 101 and the outer rib 301 is filled with structural adhesive 2, which is made of silicone and filled with a flow controller. The structural adhesive itself has good performance, such as strong tearing strength, elongation at break, and tensile strength. After being fully cured for 24 hours, it can withstand low temperatures of -60°C and high temperatures of 300°C without failure, and has stronger weather resistance. According to tests, the plastic parts bonded by the silicone structural adhesive have a tensile strength of 600N without damage.

[0023] At the same time, the filling structural adhesive 2 does not produce odor, is environmentally friendly and pollution-free, and saves electricity, avoiding the problems of hot plate welding requiring preheating, consuming electricity and producing odor, and makes the connection between the map pocket outer cover 1 and the map pocket inner cover 3 more stable.

[0024] The specific connection and joining process is to first fill the empty groove at the outer rib 301 of the map pocket inner cover 3 with structural adhesive 2, then align the inner rib 101 of the map pocket outer cover 1 with the outer rib 301 of the map pocket inner cover 3 and apply pressure to press them together. During this process, the inner rib 101 is pressed into the inner wall of the outer rib 301, and the structural adhesive 2 fills and adheres the inner wall of the inner rib 101 and the inner wall of the outer rib 301.

[0025] Furthermore, the present invention can make the map bag product thinner, more beautiful, and save internal space. Since the present solution does not require excessively high rib features, the overall thickness of the product can be made as thin as possible. In this rapidly developing era, people have increasingly higher requirements for thinness and appearance of products. The implementation of this solution meets the needs of the times.

[0026] Likewise, the present invention can realize the free production of samples, small batches, and batches, and there are relatively few restrictions during the implementation of this solution;

[0027] This solution can realize sample production at the sample stage without using equipment, molds, tooling, etc., which can save the use of development funds;

[0028] In the process of small batch and large batch production, if fast production is achieved, multiple pressing blocks can be made to press the products. Considering the limitations of production site and space, multiple semi-finished products can be stacked together and pressed together by their own gravity. The number of pressing blocks is just enough for one shift. After about 1-6 hours of pressing, they can be initially cured. The pressing blocks can be used in shifts and can be recycled. They can be completely cured after being left naturally for 24 hours.

[0029] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A bonding structure between automobile interior plastic parts, comprising a map pocket outer cover (1) and a map pocket inner cover (3), characterized in that: Multiple groups of combined inner ribs (101) are evenly fixed on the inner side of the map pocket outer cover (1), and multiple groups of combined outer ribs (301) that match the multiple groups of combined inner ribs (101) are evenly fixed inside the map pocket inner cover (3); Structural adhesive (2) is filled between the combined inner ribs (101) and the combined outer ribs (301).

2. The bonding structure between automobile interior plastic parts according to claim 1, characterized in that: The combined inner ribs (101) are located on the inner side of the map pocket outer cover (1), and the multiple groups of combined inner ribs (101) gradually increase in size from the inside to the outside and are evenly distributed in a rectangular ring.

3. The bonding structure between automobile interior plastic parts according to claim 1, characterized in that: The combined external ribs (301) are located on the inner side of the map pocket inner cover (3), and multiple groups of combined external ribs (301) gradually increase in size from the inside to the outside and are evenly distributed in a rectangular ring.

4. The bonding structure between automobile interior plastic parts according to claim 1, characterized in that: The structural adhesive (2) is made of silicone adhesive, and the structural adhesive (2) is filled between the inner rib (101) and the outer rib (301) using a flow controller.

Images