Automobile plastic tail door

Abstract

The utility model belongs to the technical field of automobile tail doors, and particularly relates to an automobile plastic tail door. An automobile plastic tail door comprises a tail door body, a connecting structure is arranged on the tail door body, and a buffering structure is arranged on the tail door body. The tail door body adopts an integral molding process of a resin material, so that the weight is reduced compared with a traditional metal plate tail door; due to the unique cross reinforcing ribs, the torsional rigidity of the tail gate is improved by 40%, and the problem that the rigidity of a plastic material is insufficient is effectively solved; the automobile tail door is light in weight and better in oxidation resistance, corrosion resistance and plasticity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile tail door, specifically, the utility model relates to a kind of automobile plastic tail doors. BACKGROUND

[0002] As one of the main subsystems of the vehicle body opening and closing system, the automobile tail door is connected to the vehicle body by a hinge, used for the opening and closing function of the trunk, and the sealing of the vehicle body, while improving the stiffness of the body in white and the comfort of the whole vehicle. In today's pure electric vehicle market, most automobile tail doors follow the structure of traditional fuel vehicles, and the material of traditional domestic automobile tail doors is mostly steel plate or aluminum material, which has heavy weight, poor oxidation resistance, corrosion resistance and plasticity.

[0003] Chinese patent (publication number: 209634246U) discloses an automobile tail door, comprising a tail door inner plate and a tail door outer plate, the tail door outer plate comprises an outer plate upper plate and an outer plate lower plate connected below the outer plate upper plate; the outer plate upper plate and the outer plate lower plate are connected with the tail door inner plate respectively; wherein a tail lamp mounting groove for mounting tail lamp is formed between the outer plate upper plate and the outer plate lower plate, the tail lamp mounting groove penetrates through the left and right ends of the tail door outer plate; at least one reinforcing bracket is connected between the tail door outer plate and the tail door inner plate. But the automobile tail door has heavy weight, poor oxidation resistance and corrosion resistance. UTILITY MODEL CONTENT

[0004] The utility model is carried out in order to solve the above problem, the purpose is to provide a kind of automobile plastic tail door with light weight, oxidation resistance, corrosion resistance and good plasticity, to realize the above-mentioned purpose, the technical scheme that the utility model adopts is as follows: a kind of automobile plastic tail door, comprising tail door body, connection structure is provided on the tail door body, buffer structure is provided on the tail door body.

[0005] The connection structure comprises hinge mounting hole, lock body mounting hole, the hinge mounting hole is arranged at one end of tail door body, the lock body mounting hole is arranged at the other end of tail door body, the lock body mounting hole is connected with lock body assembly, and the lock body assembly is provided with lock body via hole.

[0006] The buffer structure comprises first buffer block mounting hole and second buffer block mounting hole, the first buffer block mounting hole is arranged at the corner of tail door body, and the second buffer block mounting hole is arranged at the edge of tail door body.

[0007] Sealing structure is provided on the tail door body, the sealing structure comprises sealing strip mounting plane, the sealing strip mounting plane is arranged on the tail door body, and the sealing strip mounting plane is located between the tail door body and the vehicle body.

[0008] The tail gate body is provided with a gas strut mounting hole and a tool box mounting hole, and a first wire harness through hole is arranged at a corner of the tail gate body.

[0009] The tail gate body is provided with a second wire harness through hole and a lamp mounting hole, and a positioning buckle is arranged on one side of the lamp mounting hole.

[0010] The tail gate body is provided with an outer plate adhesive plane, a gold-plated reinforcing element mounting hole, a reinforcing rib and a reinforcing plate mounting hole.

[0011] The hinge mounting hole, the first buffer block mounting hole, the second buffer block mounting hole, the sealing strip mounting plane and the gas strut mounting hole, the first wire harness through hole, the gold-plated reinforcing element mounting hole and the reinforcing rib are arranged symmetrically with respect to the central axis plane of the tail gate body.

[0012] The reinforcing rib is arranged in a cross-shaped structure.

[0013] The tail gate body is a plastic integrally formed structure.

[0014] The technical effect of the utility model is that the tail gate body is integrally formed by using a resin material, which reduces the weight of the tail gate compared with a traditional metal tail gate. The unique cross-shaped reinforcing rib improves the torsional stiffness of the tail gate by 40%, effectively solving the problem of insufficient rigidity of the plastic material. The material cost is reduced by 55% compared with a steel solution, and the carbon emissions during the life cycle are reduced by 42%. The hinge mounting hole, the first buffer block mounting hole, the second buffer block mounting hole, the sealing strip mounting plane and the gas strut mounting hole, the first wire harness through hole, the gold-plated reinforcing element mounting hole and the reinforcing rib are arranged symmetrically with respect to the central axis plane of the tail gate body. This can balance the stress distribution of the tail gate body and avoid unilateral stress concentration. It improves the smoothness of opening and closing and prolongs the service life. The reinforcing rib is arranged in a cross-shaped structure. The cross-shaped reinforcing rib improves the overall torsional performance and makes up for the insufficient rigidity of the plastic material. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification includes the following drawings, and the contents shown are as follows:

[0016] Fig. 1 is a whole structure diagram of a plastic tail gate of an automobile according to the utility model;

[0017] Fig. 2 is an enlarged view of a connection of a lock body assembly of a plastic tail gate of an automobile according to the utility model;

[0018] Fig. 3 is an installation position schematic diagram of a license plate lamp of a plastic tail gate of an automobile according to the utility model;

[0019] Fig. 4 is a partial enlarged view of a plastic tail gate of an automobile according to the utility model;

[0020] Fig. 5The utility model relates to a reinforced plate mounting hole connecting position drawing of automobile plastic tailgate.

[0021] Marked in the figure: 1, tailgate body; 101, first wire harness via hole; 102, second wire harness via hole; 103, lamp mounting hole; 104, positioning buckle; 105, outer plate adhesive plane; 106, gold-plated reinforcing piece mounting hole; 107, reinforcing rib; 108, reinforced plate mounting hole; 2, connecting structure; 201, hinge mounting hole; 202, lock body mounting hole; 203, lock body assembly; 204, lock body via hole; 3, buffer structure; 301, first buffer block mounting hole; 302, second buffer block mounting hole; 4, sealing structure; 401, sealing strip mounting plane; 5, gas strut mounting hole; 6, tool box mounting hole. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application are further described in detail below with reference to the drawings and the description of the embodiments, which aims to help the skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application, and to facilitate its implementation.

[0023] As Figs. 1-5 shown, an automobile plastic tailgate, comprising tailgate body 1, tailgate body 1, tailgate body 1 is provided with connecting structure 2, tailgate body 1 is provided with buffer structure 3. Tailgate body 1 is made of resin material, the weight reduction of plastic tailgate compared with metal tailgate can reach 25% to 35%, and the fuel efficiency can be improved by 6% to 8% for every 10% reduction in vehicle weight, which can improve fuel economy and environmental protection. Compared with the traditional sheet metal structure, the plastic material has strong plasticity, is easy to mold and has simple processing and manufacturing process.

[0024] Connecting structure 2 is used for connecting with the automobile body, buffer structure 3, when the tailgate is closed, buffer structure 3 can effectively buffer the collision between tailgate body 1 and the automobile body, avoiding direct rigid contact between the two, reducing collision damage.

[0025] Connecting structure 2 includes hinge mounting hole 201, lock body mounting hole 202, hinge mounting hole 201 is arranged at one end of tailgate body 1, lock body mounting hole 202 is arranged at the other end of tailgate body 1, lock body mounting hole 202 is provided with four, lock body mounting hole 202 is connected with lock body assembly 203, and lock body assembly 203 is provided with lock body via hole 204. Hinge mounting hole 201 is used for installing hinge, so that the tailgate can be rotatably connected with the automobile body, realizing the opening and closing function of the tailgate. Lock body mounting hole 202 installs lock body assembly 203, lock body via hole 204 cooperates with the lock tongue, realizes the locking and opening function of the tailgate, and guarantees the safety and anti-theft performance of the vehicle.

[0026] The buffer structure 3 comprises a first buffer block mounting hole 301 and a second buffer block mounting hole 302, the first buffer block mounting hole 301 is arranged at the corner portion of the tail door body 1, and the second buffer block mounting hole 302 is arranged at the edge of the tail door body 1. The first buffer block mounting hole 301 and the second buffer block mounting hole 302 are used for mounting the buffer block, which buffers the collision between the tail door and the vehicle body when the tail door is closed, reduces the impact force, reduces the noise and vibration when the door is closed, protects the tail door and the vehicle body structure, and prevents paint wear and structural deformation caused by frequent collisions.

[0027] The tail door body 1 is provided with a sealing structure 4, the sealing structure 4 comprises a sealing strip mounting plane 401, the sealing strip mounting plane 401 is arranged on the tail door body 1, and the sealing strip mounting plane 401 is located between the tail door body 1 and the vehicle body. The sealing strip mounting plane 401 mounts the sealing strip, fills the gap between the tail door and the vehicle body, and realizes the functions of waterproof, dustproof, sound insulation and noise reduction.

[0028] The tail door body 1 is provided with a gas strut mounting hole 5 and a tool box mounting hole 6, and the tail door body 1 is provided with a first wire harness through hole 101 at the corner portion. The gas strut mounting hole 5 mounts the gas strut, provides support for the opening and closing of the tail door, and plays a buffering and damping role, while reducing the strength of the user to open and close the tail door, so that the tail door can be stably kept in the open state, while reducing the impact force when the door is closed, protecting the tail door and the vehicle body structure, and reducing wear. The tool box mounting hole 6 is a square structure, used for mounting a tool box, providing a space for users to store tools. It is convenient for users to store and use tools, and meets the needs of daily maintenance and emergency repair of vehicles. The first wire harness through hole 101 is a general cable channel.

[0029] The tail door body 1 is provided with a second wire harness through hole 102 and a lamp mounting hole 103, and the lamp mounting hole 103 is provided with a positioning buckle 104 on one side. The second wire harness through hole 102 is a lamp wire harness through hole, used for connecting the wire of the lamp, and the lamp mounting hole 103 is used for mounting the lamp. The second wire harness through hole 102 is specially used for connecting the wire of the lamp, and the positioning buckle 104 is used for fixing the tail lamp assembly. The buckle design ensures the installation accuracy and stability.

[0030] The tail door body 1 is provided with an outer plate gluing plane 105, a gold-plated reinforcing part mounting hole 106, a reinforcing rib 107 and a reinforcing plate mounting hole 108. The outer plate gluing plane 105 is used for bonding the outer trim panel, ensuring the appearance flatness and assembly reliability, and the gold-plated reinforcing part mounting hole 106 is used for mounting the metal reinforcing part to improve the local tensile strength.

[0031] The hinge mounting hole 201, the first buffer block mounting hole 301, the second buffer block mounting hole 302, the sealing strip mounting plane 401 and the air supporting rod mounting hole 5, the first wire harness via hole 101, the gold-plated reinforcing part mounting hole 106 and the reinforcing rib 107 are arranged in the axial plane symmetry of the tail door body 1. The stress distribution of the tail door body 1 can be balanced, and unilateral stress concentration can be avoided. The opening and closing fluency is improved, and the service life is prolonged. The reinforcing rib 107 is arranged in a cross structure. The overall torsional resistance is enhanced through the cross rib position, and the rigidity deficiency of the plastic material is compensated.

[0032] The tail door body 1 is a plastic integrally formed structure. Compared with a metal tail door, the tail door body 1 is integrally formed by plastic, which reduces the weight of the whole vehicle, improves fuel efficiency, and the structure of the tail door body 1 is symmetrical to the geometric center line, and square recessed ribs are formed on the left and right sides, respectively. The motor mounting position forms a boss and a reinforcing rib 107, and the recessed rib is connected with the outer plate by adhesive. The inner plate body structure of the tail door body 1 is arranged in a U shape, so that the bending stiffness, torsional stiffness, collision safety and other performances of the whole tail door body 1 are greatly improved.

[0033] Effects of the embodiment

[0034] The tail door body 1 is integrally formed by a resin material, which guarantees that the tail door body 1 has a bending stiffness of ≥850 MPa, and reduces the weight of the traditional sheet metal tail door by 32%. The unique cross-shaped reinforcing rib 107 cooperates with the square recessed rib and the boss structure design to improve the torsional stiffness of the tail door by 40%, effectively solving the problem of insufficient rigidity of the plastic material; the material cost is reduced by 55% compared with the steel scheme, and the life cycle carbon emission is reduced by 42%. The hinge mounting hole 201, the first buffer block mounting hole 301, the second buffer block mounting hole 302, the sealing strip mounting plane 401 and the air supporting rod mounting hole 5, the first wire harness via hole 101, the gold-plated reinforcing part mounting hole 106 and the reinforcing rib 107 are arranged in the axial plane symmetry of the tail door body 1. The stress distribution of the tail door body 1 can be balanced, and unilateral stress concentration can be avoided. The opening and closing fluency is improved, and the service life is prolonged. The reinforcing rib 107 is arranged in a cross structure. The overall torsional resistance is enhanced through the cross rib position, and the rigidity deficiency of the plastic material is compensated. The gold-plated reinforcing part mounting hole 106 and the reinforcing rib 107 make the tail door body 1 stronger.

[0035] The utility model is described exemplarily above in combination with the drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned mode. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A plastic tailgate for a motor vehicle comprising a tailgate body (1), characterised in that: The tail door body (1) is provided with a connecting structure (2), and the tail door body (1) is provided with a buffer structure (3).

2. The automotive plastic tailgate of claim 1, wherein: The connecting structure (2) comprises a hinge mounting hole (201) and a lock body mounting hole (202), the hinge mounting hole (201) is arranged at one end of the tail door body (1), the lock body mounting hole (202) is arranged at the other end of the tail door body (1), the lock body mounting hole (202) is connected with a lock body assembly (203), and the lock body assembly (203) is provided with a lock body via hole (204).

3. The automotive plastic tailgate of claim 1, wherein: The buffer structure (3) comprises a first buffer block mounting hole (301) and a second buffer block mounting hole (302), the first buffer block mounting hole (301) is arranged at a corner of the tail door body (1), and the second buffer block mounting hole (302) is arranged at an edge of the tail door body (1).

4. The automotive plastic tailgate of claim 1, wherein: The tail door body (1) is provided with a sealing structure (4), the sealing structure (4) comprises a sealing strip mounting plane (401), the sealing strip mounting plane (401) is arranged on the tail door body (1), and the sealing strip mounting plane (401) is located between the tail door body (1) and a vehicle body.

5. The automotive plastic tailgate of claim 1, wherein: The tail door body (1) is provided with a gas support rod mounting hole (5) and a tool box mounting hole (6), and the tail door body (1) is provided with a first wire harness via hole (101) at a corner.

6. The automotive plastic tailgate of claim 1, wherein: One end of the tail door body (1) is provided with a second wire harness via hole (102) and a lamp mounting hole (103), one side of the lamp mounting hole (103) is provided with a positioning buckle (104).

7. The automotive plastic tailgate of claim 1, wherein: The tail door body (1) is provided with an outer plate gluing plane (105), a gold-plated reinforcing element mounting hole (106), a reinforcing rib (107) and a reinforcing plate mounting hole (108).

8. The automotive plastic tailgate of claim 7, wherein: The hinge mounting hole (201), the first buffer block mounting hole (301), the second buffer block mounting hole (302), the sealing strip mounting plane (401), the gas support rod mounting hole (5), the first wire harness via hole (101), the gold-plated reinforcing element mounting hole (106) and the reinforcing rib (107) are arranged in the tail door body (1) in a central axial plane symmetry.

9. The automotive plastic tailgate of claim 8, wherein: The reinforcing rib (107) is arranged in a cross structure.

10. The automotive plastic tailgate of claim 1, wherein: The tail door body (1) is a plastic one-piece forming structure.

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