Lightweight PET (Polyethylene Terephthalate) composite cover plate for car trunk

Abstract

The utility model discloses a light-weight PET (polyethylene terephthalate) composite cover plate for an automobile trunk, which belongs to the technical field of automobile manufacturing and comprises a cover plate frame, an outer PET plate is fixedly connected to the upper surface of the cover plate frame, an inner PET plate is fixedly connected to the lower surface of the cover plate frame, and a sealing rubber strip is fixedly connected to the periphery of the inner wall of the inner PET plate. The trunk cover plate is made of the double-layer PET plate and the fireproof foam plate, compared with a trunk cover plate made of an iron sheet, the trunk cover plate has the advantage of being light in weight, the self weight of a vehicle can be reduced, more oil can be saved in the running process of the vehicle, and the safety of the vehicle is improved. The cover plate frame can enhance the structural strength of the trunk cover plate, when a rear-end collision occurs, the PET material has a certain energy absorption characteristic and has good toughness and impact resistance, and the composite cover plate composed of the double-layer PET plate and the fire-resistant foam plate has a heat insulation effect and can reduce the temperature of the trunk.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, and particularly relates to a lightweight PET composite cover plate for an automobile trunk. Background Technique

[0002] The automobile trunk cover plate is an important part of automobile design. It is mainly used to cover the trunk (also known as the rear trunk) of the automobile. While providing a storage space, it can also play various functions such as protecting the items inside the trunk, sound insulation, and heat insulation. The design of the trunk cover plate directly affects the storage capacity, riding comfort, and aesthetic degree of the vehicle.

[0003] The trunk cover plate usually consists of an outer plate and an inner plate, and may be equipped with reinforcing ribs or other reinforcing materials in the middle to provide sufficient rigidity and strength. The trunk cover plates of some vehicle models also extend to the rear windshield to form a so-called "back door" structure. This design not only increases the use space of the trunk but also maintains the traditional shape of a sedan.

[0004] In addition to having good rigidity, the trunk cover plate also needs to have certain waterproof and dustproof properties, which are usually achieved by setting sealing strips around the cover plate. In addition, the opening of the cover plate usually adopts a hook-shaped hinge and a four-bar hinge, and is equipped with a balance spring, making it easier to open and close the cover plate and being able to automatically fix in the open position for passengers to pick up and place items conveniently.

[0005] The existing trunk rear cover is made of steel structure or iron material by stamping to form the support framework of the trunk cover plate, and then the trunk shell is formed by painting the iron sheet. This structure has high thermal conductivity, resulting in too high a temperature in the trunk in summer, causing dehydration of the food, fruits, and vegetables placed in the trunk and accelerating the decay of the food. Moreover, the rigid structure has a greater impact on the vehicle body during a rear-end collision, and the large weight increases the fuel consumption of the automobile. Content of the Utility Model

[0006] To solve the above technical problems, the utility model provides a lightweight PET composite cover plate for an automobile trunk.

[0007] The technical solution of the utility model is: a lightweight PET composite cover plate for an automobile trunk, including a cover plate frame, an outer PET plate is fixedly connected to the upper surface of the cover plate frame, an inner PET plate is fixedly connected to the lower surface of the cover plate frame, a sealing strip is fixedly connected to the periphery of the inner wall of the inner PET plate, and a connecting mechanism for connecting with the vehicle body is fixedly connected to each of the left and right sides of the cover plate frame.

[0008] Further, the cover frame includes a top front beam, with top side beams fixedly connected to both sides at the rear of the top front beam, a top rear beam fixedly connected to the rear of the top side beams, tail side beams fixedly connected to both sides below the top rear beam, and a tail bottom beam fixedly connected to the bottom of the tail side beams.

[0009] Note: The cover frame is formed by the top front beam, top side beams, top rear beam, tail side beams, and tail bottom beam to enhance the overall structural strength of the luggage compartment cover.

[0010] Further, the connecting mechanism includes a bent arm and a fixed seat. The rear end of the bent arm is fixedly connected to the cover frame, the fixed seat is fixedly connected to the vehicle body, the front end of the bent arm is hinged to the fixed seat, a hook is fixedly connected to the front end of the bent arm, a tension spring is hung on the hook, and the other end of the tension spring is fixedly connected to the inner wall of the luggage compartment.

[0011] Note: The connecting mechanism facilitates the connection between the luggage compartment cover and the vehicle body, realizing the function of automatically popping up the luggage compartment cover after unlocking.

[0012] Further, tail light mounting holes for installing tail lights are provided on both sides of the tails of the outer PET board and the inner PET board, and a luggage compartment lock mounting groove is provided in the middle of the inner PET board.

[0013] Note: The tail light mounting holes facilitate the installation of the tail light assembly on the luggage compartment, and the luggage compartment lock mounting groove facilitates the installation of the luggage compartment lock.

[0014] Further, a fireproof foam board is fixedly connected between the inner PET board and the outer PET board.

[0015] Note: The fireproof foam board can increase the support between the inner PET board and the outer PET board and has the functions of heat insulation and fire prevention.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The present utility model uses a double-layer PET board and a fireproof foam board to prepare the luggage compartment cover. Compared with the luggage compartment cover made of iron sheet, it has the characteristics of light weight, can reduce the vehicle's own weight, make the car more fuel-efficient when driving, the cover frame can enhance the structural strength of the luggage compartment cover, when being rear-ended, the PET material has certain energy absorption characteristics, has good toughness and impact resistance, can effectively buffer the impact force brought by the car rear-end collision to the vehicle body, and the composite cover composed of the double-layer PET board and the fireproof foam board has a heat insulation effect, can reduce the temperature of the luggage compartment, and extend the shelf life of items such as food and fruits placed in the luggage compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of the structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the cover frame structure of the present utility model.

[0020] Figure 3 It is a sectional view of the connection relationship between the cover frame of the present utility model, the outer PET board and the inner PET board.

[0021] Figure 4 It is a sectional view of the connection relationship among the outer PET board, the inner PET board and the fireproof foam board of the present utility model.

[0022] Among them, 1 - cover frame, 2 - outer PET board, 3 - inner PET board, 4 - sealing strip, 5 - connection mechanism, 11 - front top beam, 12 - side top beam, 13 - rear top beam, 14 - side tail beam, 15 - bottom tail beam, 51 - bent arm, 52 - fixed seat, 53 - hook, 54 - tension spring, 6 - taillight mounting hole, 7 - trunk lock mounting groove, 8 - fireproof foam board. Specific implementation mode

[0023] Embodiment 1:

[0024] As Figure 1 shown, a lightweight PET composite cover for an automobile trunk includes a cover frame 1. The upper surface of the cover frame 1 is fixedly connected with an outer PET board 2, the lower surface of the cover frame 1 is fixedly connected with an inner PET board 3, a sealing strip 4 is fixedly connected around the inner wall of the inner PET board 3, and a connection mechanism 5 for connecting with the vehicle body is fixedly connected to each of the left and right sides of the cover frame 1.

[0025] As Figure 2 shown, the cover frame 1 includes a front top beam 11. The rear sides of the front top beam 11 are fixedly connected with side top beams 12, the rear of the side top beams 12 is fixedly connected with a rear top beam 13, the lower sides of the rear top beam 13 are fixedly connected with side tail beams 14, and the lower part of the side tail beams 14 is fixedly connected with a bottom tail beam 15.

[0026] The cover frame 1 is formed by the front top beam 11, the side top beams 12, the rear top beam 13, the side tail beams 14 and the bottom tail beam 15 to enhance the overall structural strength of the trunk cover.

[0027] The connection mechanism 5 includes a bent arm 51 and a fixed seat 52. The rear end of the bent arm 51 is fixedly connected with the cover frame 1, the fixed seat 52 is fixedly connected with the vehicle body, the front end of the bent arm 51 is hinged to the fixed seat 52, a hook 53 is fixedly connected to the front end of the bent arm 51, a tension spring 54 is hung on the hook 53, and the other end of the tension spring 54 is fixedly connected with the inner wall of the trunk.

[0028] The connecting mechanism 5 facilitates the connection between the trunk lid and the vehicle body, realizing the function of the trunk lid automatically popping up after unlocking.

[0029] Tail lamp mounting holes 6 for installing tail lamps are provided on both sides of the tails of the outer PET plate 2 and the inner PET plate 3, and a trunk lock mounting groove 7 is provided in the middle of the inner PET plate 3.

[0030] The tail lamp mounting holes 6 facilitate the installation of the tail lamp assembly on the trunk, and the trunk lock mounting groove 7 facilitates the installation of the trunk lock.

[0031] Embodiment 2:

[0032] Based on Embodiment 1, the difference between Embodiment 2 and Embodiment 1 is that, as Figure 4 shown, a fireproof foam board 8 is fixedly connected between the inner PET plate 3 and the outer PET plate 2. The material of the fireproof foam board 8 is prior art, such as the fireproof PVC foam board of the Ouge brand.

[0033] Compared with Embodiment 1, the fireproof foam board 8 in this embodiment can increase the support between the inner PET plate 3 and the outer PET plate 2 and has the functions of heat insulation and fire prevention.

[0034] The working principle in the above Embodiment 2:

[0035] When assembling the trunk lid, based on the cover frame 1, first install the outer PET plate 2 above the cover frame 1, then closely attach the fireproof foam board 8 to the inner wall of the outer PET plate 2, and then fit the inner PET plate 3 to the cover frame 1. Screw bolts from the inner PET plate 3 into threaded connection with the outer PET plate 2. Then install the trunk lock in the trunk lock groove 7, snap the tail lamp into the tail lamp mounting hole 6 on the outer PET plate 2 from the outside, and then fix the tail lamp to the inner PET plate 3 with bolts. Fix the fixing seat 52 to the vehicle body trunk, and fix the tension spring 54 to the inner wall of the trunk.

[0036] The threaded connection seats and connection holes of the outer PET plate 2 and the inner PET plate 3 are not drawn in the above embodiments, which belong to conventional techniques. The specific connection method of the outer PET plate 2 and the inner PET plate 3 to the cover frame 1 is as Figure 3 shown.

Claims

1. A lightweight PET composite cover plate for an automobile trunk, characterized in that It includes a cover plate frame (1), an outer PET plate (2) is fixedly connected to the upper surface of the cover plate frame (1), an inner PET plate (3) is fixedly connected to the lower surface of the cover plate frame (1), a sealing strip (4) is fixedly connected to the periphery of the inner wall of the inner PET plate (3), and a connecting mechanism (5) for connecting to the vehicle body is fixedly connected to each of the left and right sides of the cover plate frame (1).

2. The lightweight PET composite cover plate for an automobile trunk according to claim 1, characterized in that, The cover plate frame (1) includes a top front beam (11), top side beams (12) are fixedly connected to both sides behind the top front beam (11), a top rear beam (13) is fixedly connected to the rear of the top side beams (12), tail side beams (14) are fixedly connected to both sides below the top rear beam (13), and a tail bottom beam (15) is fixedly connected to the lower part of the tail side beams (14).

3. The lightweight PET composite cover plate for a car trunk according to claim 1, wherein, The connecting mechanism (5) includes an elbow arm (51) and a fixing seat (52). The rear end of the elbow arm (51) is fixedly connected to the cover plate frame (1), the fixing seat (52) is fixedly connected to the vehicle body, the front end of the elbow arm (51) is hinged to the fixing seat (52), a hook (53) is fixedly connected to the front end of the elbow arm (51), a tension spring (54) is hung on the hook (53), and the other end of the tension spring (54) is fixedly connected to the inner wall of the luggage compartment.

4. The lightweight PET composite cover plate for an automobile trunk according to claim 1, wherein, Tail lamp mounting holes (6) for mounting tail lamps are provided on both sides of the tails of the outer PET plate (2) and the inner PET plate (3), and a luggage compartment lock mounting groove (7) is provided in the middle of the inner PET plate (3).

5. The lightweight PET composite cover plate for a car trunk according to claim 1, wherein A fireproof foam board (8) is fixedly connected between the inner PET plate (3) and the outer PET plate (2).

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