Reinforced composite bottom guard plate

Abstract

The utility model belongs to the technical field of composite boards, and particularly relates to a reinforced composite bottom guard board which comprises a composite board body, the composite board body comprises an upper skin and a lower skin, the upper skin and the lower skin are attached to each other, a medium-temperature epoxy adhesive film is arranged between the upper skin and the lower skin, and the middle-temperature epoxy adhesive film is arranged between the upper skin and the lower skin. The middle-temperature epoxy adhesive film is arranged between the upper skin and the lower skin so as to increase interface bonding between the upper skin and the lower skin, the upper surface of the middle-temperature epoxy adhesive film is in contact with the lower surface of the upper skin, and the lower surface of the middle-temperature epoxy adhesive film is in contact with the upper surface of the lower skin. According to the utility model, the intermediate-temperature epoxy adhesive film is arranged between the upper skin and the lower skin, so that the interface bonding between the upper skin and the lower skin can be increased, the reinforced composite bottom guard plate can be obtained by increasing the interface bonding between the upper skin and the lower skin, the durability of the bottom guard plate of new energy is improved, and the service life of the bottom guard plate is prolonged. And the layering phenomenon of the bottom protection plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of composite plates, in particular to a reinforced composite bottom guard plate. Background Art

[0002] The underbody shield of a new energy vehicle is a protective device installed on the vehicle chassis, primarily used to protect key components such as the vehicle's power battery from external damage. Typically made of a composite panel composed of multiple metal plates, it primarily prevents damage to the vehicle's underbody battery from impacts such as stones during high-speed driving, as well as a series of underbody scrapes during driving. This can cause deformation of the battery cells, trigger thermal runaway, and subsequently cause the power battery to explode, leading to spontaneous combustion of the new energy vehicle.

[0003] However, the existing metal underbody guards of new energy vehicles are heavy under the condition of meeting the collision requirements. Therefore, a reinforced composite underbody guard is invented to significantly reduce the weight of the underbody guard. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing reinforced composite bottom guard plate, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a reinforced composite bottom guard plate that can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A reinforced composite bottom guard plate includes a composite plate body, wherein the composite plate body includes an upper skin and a lower skin, wherein the upper skin and the lower skin are bonded together, and a medium-temperature epoxy film is provided between the upper skin and the lower skin to increase the interface bonding between the upper skin and the lower skin.

[0008] As a preferred solution of the reinforced composite bottom guard plate described in the present invention, the upper surface of the medium-temperature epoxy film is in contact with the lower surface of the upper skin, and the lower surface of the medium-temperature epoxy film is in contact with the upper surface of the lower skin.

[0009] As a preferred solution of the reinforced composite bottom guard plate described in the present invention, a plurality of raised cavities are provided on the upper skin, and pultruded ribs are provided in the raised cavities.

[0010] As a preferred solution of the reinforced composite bottom guard plate described in the present invention, the pultruded ribs are arranged on the upper surface of the lower skin, and the bottom of the pultruded ribs is in contact with the upper surface of the medium-temperature epoxy film.

[0011] As a preferred solution of the reinforced composite bottom guard plate described in the present invention, a plug is provided at the connection between the upper skin and the lower skin to close the gap between the upper skin and the lower skin.

[0012] As a preferred solution of the reinforced composite bottom guard plate described in the present invention, a plurality of first screw holes are provided on the raised cavity, a plurality of second screw holes are provided on the pultruded ribs, and a plurality of third screw holes are provided on the lower skin.

[0013] As a preferred solution of the reinforced composite bottom guard plate described in the present invention, the first screw hole and the second screw hole are aligned with each other, and the second screw hole and the third screw hole are aligned with each other.

[0014] As a preferred solution of a reinforced composite bottom guard plate described in the utility model, a group of screws are threadedly connected in the first screw hole, the first screw hole and the third screw hole, a gasket is sleeved on the screw, and the gasket is located between the screw head and the raised cavity.

[0015] Compared with existing technologies:

[0016] 1. By placing a medium-temperature epoxy film between the upper and lower skins, the interface bonding between the upper and lower skins can be enhanced. By enhancing the interface bonding between the upper and lower skins, a reinforced composite bottom guard plate can be obtained, thereby improving the durability of the bottom guard plate of the new energy vehicle and preventing delamination of the bottom guard plate;

[0017] 2. The reinforced composite bottom guard plate provided in the present invention can reduce its own weight while ensuring that the metal bottom guard plate of the new energy vehicle meets the impact requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosive structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0021] Figure 4 It is a schematic top view of the structure of the utility model.

[0022] In the figure: upper skin 10, raised cavity 11, first screw hole 12, pultruded rib 20, second screw hole 21, lower skin 30, third screw hole 31, plug 40, medium-temperature epoxy film 50, screw 61, gasket 62. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides a reinforced composite bottom guard plate. Figure 1-Figure 4 , including a composite panel body, the composite panel body includes an upper skin 10 and a lower skin 30, the upper skin 10 and the lower skin 30 are bonded together, and a medium-temperature epoxy film 50 is provided between the upper skin 10 and the lower skin 30 to increase the interface bonding between the upper skin 10 and the lower skin 30, the upper surface of the medium-temperature epoxy film 50 is in contact with the lower surface of the upper skin 10, and the lower surface of the medium-temperature epoxy film 50 is in contact with the upper surface of the lower skin 30; wherein, the medium-temperature epoxy film 50 is an epoxy resin adhesive cured by a medium-temperature curing process.

[0025] The upper skin 10 is provided with a number of raised cavities 11, and pultruded ribs 20 are provided in the raised cavities 11. The pultruded ribs 20 are provided on the upper surface of the lower skin 30, and the bottom of the pultruded ribs 20 is in contact with the upper surface of the medium-temperature epoxy film 50. A plug 40 is provided at the connection between the upper skin 10 and the lower skin 30 to seal the gap between the upper skin 10 and the lower skin 30.

[0026] A plurality of first screw holes 12 are provided on the raised cavity 11, a plurality of second screw holes 21 are provided on the pultruded rib 20, and a plurality of third screw holes 31 are provided on the lower skin 30. The first screw holes 12 and the second screw holes 21 are aligned with each other, and the second screw holes 21 and the third screw holes 31 are aligned with each other. A group of screws 61 are threadedly connected in the first screw holes 12, the first screw holes 12 and the third screw holes 31, and a gasket 62 is provided on the screw 61, and the gasket 62 is located between the head of the screw 61 and the raised cavity 11.

[0027] In specific use, the assembly process is as follows:

[0028] First, bond the medium-temperature epoxy film 50 to the lower skin 30. Then, arrange the pultrusion rib 20 on the lower skin 30, and align the second screw hole 21 and the third screw hole 31. After that, arrange the upper skin 10 on the lower skin 30. At this time, the pultrusion rib 20 will be located in the raised cavity 11. During this process, the first screw hole 12 and the second screw hole 21 need to be aligned. Finally, first put the gasket 62 on the screw 61, and then thread one end of the screw 61 into the first screw hole 12, the second screw hole 21 and the third screw hole 31 in sequence. At this point, a reinforced composite bottom guard plate can be obtained and used as a bottom guard plate for new energy.

[0029] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A reinforced composite bottom guard plate, comprising a composite plate body, wherein the composite plate body comprises an upper skin (10) and a lower skin (30), wherein the upper skin (10) and the lower skin (30) are fitted together, and wherein: A medium-temperature epoxy adhesive film (50) is provided between the upper skin (10) and the lower skin (30) to enhance the interface bonding between the upper skin (10) and the lower skin (30).

2. A reinforced composite bottom guard plate according to claim 1, characterized in that: The upper surface of the medium-temperature epoxy film (50) contacts the lower surface of the upper skin (10), and the lower surface of the medium-temperature epoxy film (50) contacts the upper surface of the lower skin (30).

3. The reinforced composite bottom guard plate according to claim 1, characterized in that: A plurality of raised cavities (11) are provided on the upper skin (10), and pultrusion ribs (20) are provided in the raised cavities (11).

4. The reinforced composite bottom guard plate according to claim 3, characterized in that: The pultruded ribs (20) are arranged on the upper surface of the lower skin (30), and the bottom of the pultruded ribs (20) is in contact with the upper surface of the medium-temperature epoxy film (50).

5. The reinforced composite bottom guard plate according to claim 1, characterized in that: A plug (40) is provided at the connection between the upper skin (10) and the lower skin (30) so as to seal the gap between the upper skin (10) and the lower skin (30).

6. The reinforced composite bottom guard plate according to claim 4, characterized in that: A plurality of first screw holes (12) are provided on the raised cavity (11), a plurality of second screw holes (21) are provided on the pultruded rib (20), and a plurality of third screw holes (31) are provided on the lower skin (30).

7. The reinforced composite bottom guard plate according to claim 6, characterized in that: The first screw hole (12) and the second screw hole (21) are aligned, and the second screw hole (21) and the third screw hole (31) are aligned.

8. The reinforced composite bottom guard plate according to claim 7, characterized in that: A set of screws (61) are threadedly connected in the first screw hole (12), the first screw hole (12) and the third screw hole (31), a gasket (62) is sleeved on the screw (61), and the gasket (62) is located between the head of the screw (61) and the raised cavity (11).

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