Improved composite board and automobile ornament

Abstract

The invention provides an improved composite board and an automobile ornament, and belongs to the technical field of automobile parts, and the improved composite board comprises an inner core part which is a resin-based composite part; the appearance part is arranged to be a decoration layer, the appearance part comprises an observation face, the appearance part is connected with the inner core part, and the observation face is located on the back face of the face, where the inner core part is located, of the appearance part. The automobile door has the beneficial effects that the appearance part is connected with the inner core part, the observation surface of the appearance part can be sprayed with the automobile body color, the inner core part can play a reinforcing role, the original process needing multiple paint spraying is effectively replaced, the process is simplified, and the requirement for the A-level surface of the appearance can be met.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology, and relates to an improved composite sheet and automotive trim. Background Technology

[0002] Existing automotive sheet materials are generally composed of one or more of the following: ABS (acrylonitrile-butadiene-styrene plastic), PVC (polyvinyl chloride), waterproof fiberboard, and PP (polypropylene). Among them, PP sheet, as a thermoplastic sheet that can be low-pressure and thermoformed, has advantages such as good air permeability, good sound insulation performance, and easy installation, and is often used directly as automotive sheet materials.

[0003] However, the polypropylene injection-molded sheets currently popular on the market, if painted using ordinary spray painting methods, not only require multiple painting processes and are complex, but also have strength issues with existing polypropylene injection-molded sheets, leaving considerable room for improvement. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by proposing an improved composite sheet material and automotive trim.

[0005] The objective of this invention can be achieved through the following technical solution: an improved composite board, comprising:

[0006] The inner core is made of a resin-based composite material;

[0007] An outer surface portion, which is configured as a decorative layer, includes an observation surface, is connected to the inner core portion, and the observation surface is located on the back side of the outer surface portion on which the inner core portion is located.

[0008] In one of the improved composite panels described above, the decorative layer is a polyurethane or polyurea, nylon, dicyclopentadiene, or epoxy coating.

[0009] In one of the improved composite panels described above, the decorative layer is a paint layer.

[0010] In the aforementioned improved composite board, the thickness of the inner core is 0.15mm-0.5mm.

[0011] In one of the improved composite panels described above, the thickness of the decorative layer, when it is polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, is 0.3mm-0.7mm.

[0012] In the aforementioned improved composite board, the thickness of the decorative layer, which is a paint layer, is 50µm-75µm, preferably 60µm.

[0013] In the aforementioned improved composite board, a first reinforcing part is further included. The first reinforcing part is connected to the inner core part, and the inner core part is located between the outer surface part and the first reinforcing part. The first reinforcing part is a first reinforcing layer or a first reinforcing rib.

[0014] In the aforementioned improved composite board, the thickness of the first reinforcing part is 0.7mm-1.2mm.

[0015] In one of the improved composite panels described above, the first reinforcing part is configured as a continuous fiber-reinforced thermoplastic or thermosetting composite.

[0016] In the aforementioned improved composite board, the first reinforcing part is a first reinforcing rib, the first reinforcing rib includes a plurality of first reinforcing heads, the first reinforcing head includes a first connecting part, and the first connecting part is connected to the inner core.

[0017] In the aforementioned improved composite material, the first reinforcing head further includes a first protrusion, which is integrally connected to and protrudes from the first connecting portion. The cross-sectional area of ​​the connection between the first connecting portion and the first protrusion is smaller than the cross-sectional area of ​​the connection between the first connecting portion and the inner core.

[0018] In one of the improved composite materials described above, the cross-sectional area of ​​the first connecting portion extending from the inner core toward the first protrusion gradually decreases.

[0019] In the aforementioned improved composite board, a second reinforcing part is also included. The second reinforcing part is connected to the first reinforcing part. The first reinforcing part is located between the inner core and the second reinforcing part. The second reinforcing part is a second reinforcing layer or a second reinforcing rib.

[0020] In the aforementioned improved composite board, the thickness of the second reinforcing part is 1.5mm-3mm.

[0021] In one of the improved composite panels described above, the second reinforcing part is configured as a thermoplastic or thermosetting resin component.

[0022] In the aforementioned improved composite board, the first reinforcing part is a first reinforcing layer, the second reinforcing part is a second reinforcing rib, the second reinforcing rib includes a plurality of second reinforcing heads, the second reinforcing head includes a second connecting part, and the second connecting part is connected to the first reinforcing layer.

[0023] In the aforementioned improved composite material, the second reinforcing head further includes a second protrusion, which is integrally connected to and protrudes from the second connecting portion. The cross-sectional area at the connection between the second connecting portion and the second protrusion is smaller than the cross-sectional area at the connection between the second connecting portion and the first reinforcing layer.

[0024] In the aforementioned improved composite material, the cross-sectional area of ​​the second connecting portion gradually decreases in the direction extending from the first reinforcing layer toward the second protrusion.

[0025] In the aforementioned improved composite board, the first reinforcing part is a first reinforcing rib, the second reinforcing part is a second reinforcing layer, the first reinforcing rib includes a plurality of first reinforcing heads, the first reinforcing head includes a first connecting part, and the second reinforcing layer is connected to the inner core through the first connecting part.

[0026] In the aforementioned improved composite board, the first reinforcing head further includes a first protrusion, and the number of the first connecting parts is two. The two first connecting parts are respectively located at both ends of the first protrusion and integrally connected. One first connecting part is connected to the inner core, and the cross-sectional area of ​​the connection between the first connecting part and the first protrusion is smaller than the cross-sectional area of ​​the connection between the first connecting part and the inner core. The other first connecting part is connected to the second reinforcing layer, and the cross-sectional area of ​​the connection between the first connecting part and the first protrusion is smaller than the cross-sectional area of ​​the connection between the first connecting part and the second reinforcing layer.

[0027] In the aforementioned improved composite material, the cross-sectional area of ​​the first connecting portion extending from the inner core toward the first protrusion gradually decreases, and the cross-sectional area of ​​the first connecting portion extending from the second reinforcing layer toward the first protrusion gradually decreases.

[0028] In the aforementioned improved composite board, the exterior portion consists of two layers: a polyurethane layer and a paint layer, with the paint layer located on the outer surface of the polyurethane layer.

[0029] Furthermore, an automotive trim component, comprising the aforementioned improved composite sheet material, can be an inner or outer panel of a car door panel, an inner or outer panel of a car tailgate, or a car hood cover. The entire improved composite sheet material can also be applied to aircraft, such as aircraft fuselage skin, including outer or inner fuselage skin.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The exterior part is connected to the inner core. Since the exterior part is made of polyurethane, also known as PRU, the body color can be directly formed on the exterior of the inner core by adding color paste. This effectively replaces the original process that requires multiple painting layers, simplifies the process, and can meet the requirements of Class A exterior surface.

[0032] 2. The first reinforcing part is the first strengthening layer. The first strengthening layer is provided on the back of the inner core relative to the outer surface, which improves the dent resistance of the improved composite board and increases the overall strength.

[0033] 3. The first reinforcing rib is a partially hollowed-out structure on the back of the inner core, which not only provides local reinforcement but also further reduces weight.

[0034] 4. The first reinforcing part is a first reinforcing layer, and the second reinforcing part is a second reinforcing layer. The first reinforcing layer is provided on the back side of the inner core relative to the outer surface part, and the second reinforcing layer is provided on the back side of the first reinforcing layer relative to the inner core part, which improves the dent resistance of the improved composite board and increases the overall strength.

[0035] 5. The first reinforcing part is the first reinforcing layer, and the second reinforcing part is the second reinforcing rib. The second reinforcing rib is a structure with a partial hollowing out on the back of the inner core, which serves to strengthen both the overall structure and the local area.

[0036] 6. The first reinforcing part is the first reinforcing rib, which is a partially hollowed-out structure formed on the back of the inner core. The second reinforcing part is the second reinforcing layer, which serves to strengthen both the overall structure and the local area.

[0037] 7. The exterior uses a polyurethane layer plus a paint layer, which solves the problem of not being able to process special colors when using only a polyurethane layer, thus better solving the appearance color problem. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0039] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0040] Figure 3 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0041] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the present invention.

[0042] Figure 5 This is a structural schematic diagram of Embodiment 5 of the present invention.

[0043] Figure 6 This is a schematic diagram of the structure of Embodiment Six of the present invention.

[0044] Figure 7 This is a schematic diagram of the structure of Embodiment Seven of the present invention.

[0045] Figure 8 This is a schematic diagram of the structure of Embodiment 8 of the present invention.

[0046] Figure 9 This is a structural schematic diagram of Embodiment Nine of the present invention.

[0047] Figure 10 This is a schematic diagram of the structure of Embodiment 10 of the present invention.

[0048] Figure 11 This is a schematic diagram of the structure of Embodiment Eleven of the present invention.

[0049] Figure 12 This is a schematic diagram of the structure of Embodiment Twelve of the present invention.

[0050] Figure 13 This is a schematic diagram of the structure of Embodiment Thirteen of the present invention.

[0051] In the figure, 100 is the inner core; 200 is the outer appearance; 201 is the polyurethane layer; 202 is the paint layer; 310 is the first reinforcing layer; 320 is the first reinforcing rib; 321 is the first connecting part; 322 is the first protrusion; 410 is the second reinforcing layer; 420 is the second reinforcing rib; 421 is the second connecting part; and 422 is the second protrusion. Detailed Implementation

[0052] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0054] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0058] Example 1

[0059] like Figure 1 As shown, an improved composite board includes: an inner core 100 and an outer surface 200.

[0060] The inner core 100 is configured as a resin-based composite, preferably a thermoplastic or thermosetting resin, and more preferably a thermoplastic resin. The thickness of the inner core 100 is 0.15mm-0.5mm, specifically optimized to 0.2mm. The paint layer is a polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, preferably a polyurethane, polyurea, or epoxy coating, and more preferably a polyurethane coating. When the outer part 200 is configured as polyurethane, the thickness of the outer part 200 is 0.3mm-0.7mm, optimized to 0.5mm. When the decorative layer of the outer part 200 is a paint layer, the thickness is 50um-75um, preferably 60um. The outer part 200 includes an observation surface (not shown in the figure), which is connected to the inner core 100. The observation surface is located on the back side of the outer part 200 where the inner core 100 is located.

[0061] In this embodiment, the outer surface 200 is connected to the inner core 100. The viewing surface of the outer surface 200 can be painted with the body color, and the inner core 100 can play a reinforcing role, effectively improving the problem of difficult painting of the existing improved composite material. The inner core 100 achieves lightweighting, improves the dent resistance of the improved composite material, and increases the overall strength.

[0062] Example 2

[0063] like Figure 2 As shown, an improved composite board includes: an inner core 100, an outer surface 200, and a first reinforcing part.

[0064] The inner core 100 is a resin-based composite, preferably a thermoplastic or thermosetting resin, and more preferably a thermoplastic resin. The thickness of the inner core 100 is 0.15mm-0.5mm, specifically optimized to 0.2mm. The paint layer is a polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, preferably a polyurethane, polyurea, or epoxy coating, and more preferably a polyurethane coating. The outer surface 200 is made of polyurethane, and the thickness of the outer surface 200 is 0.3mm-0.7mm, optimized to 0.5mm. When the decorative layer of the outer surface 200 is a paint layer, the thickness is 50um-75um, preferably 60um. The outer surface 200 includes an observation surface, which is connected to the inner core 100. The observation surface is located on the back side of the outer surface 200 where the inner core 100 is located.

[0065] The first reinforcing part is connected to the inner core 100, which is located between the outer surface 200 and the first reinforcing part. The first reinforcing part is a first reinforcing layer 310 with a thickness of 0.7mm-1.2mm, specifically optimized to 1mm. In this embodiment, the first reinforcing part is a first reinforcing layer 310. The first reinforcing layer 310 is provided on the back side of the inner core 100 relative to the outer surface 200, which improves the dent resistance of the improved composite board and increases the overall strength.

[0066] Specifically, the first reinforcing part is configured as a continuous fiber-reinforced thermoplastic or thermosetting composite material to achieve overall reinforcement of the improved composite board.

[0067] Example 3

[0068] like Figure 3 As shown, an improved composite board includes: an inner core 100, an outer surface 200, and a first reinforcing part.

[0069] The inner core 100 is a resin-based composite, preferably a thermoplastic or thermosetting resin, and more preferably a thermoplastic resin. The thickness of the inner core 100 is 0.15mm-0.5mm, specifically optimized to 0.2mm. The paint layer is a polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, preferably a polyurethane, polyurea, or epoxy coating, and more preferably a polyurethane coating. The outer surface 200 is made of polyurethane, and the thickness of the outer surface 200 is 0.3mm-0.7mm, optimized to 0.5mm. When the decorative layer of the outer surface 200 is a paint layer, the thickness is 50um-75um, preferably 60um. The outer surface 200 includes an observation surface, which is connected to the inner core 100. The observation surface is located on the back side of the outer surface 200 where the inner core 100 is located.

[0070] The first reinforcing part is connected to the inner core 100, and the inner core 100 is located between the outer part 200 and the first reinforcing part. The first reinforcing part is a first reinforcing rib 320, which includes a plurality of first reinforcing heads. Each first reinforcing head includes a first connecting part 321, which is connected to the inner core 100. The thickness of the first reinforcing part is 0.7mm-1.2mm, specifically optimized to 1mm.

[0071] In this embodiment, the first reinforcing rib 320 has a partially hollowed-out structure on the back of the inner core 100, which not only provides local reinforcement but also further reduces weight.

[0072] Specifically, the first reinforcing part is configured as a continuous fiber-reinforced thermoplastic or thermosetting composite material to achieve localized reinforcement of the improved composite board.

[0073] Example 4

[0074] like Figure 4 As shown, the difference between Embodiment 4 and Embodiment 3 is that, based on Embodiment 3, the first reinforcing head further includes a first protrusion 322. The first protrusion 322 is integrally connected to the first connecting portion 321 and protrudes from the first connecting portion 321. The cross-sectional area of ​​the connection between the first connecting portion 321 and the first protrusion 322 is smaller than the cross-sectional area of ​​the connection between the first connecting portion 321 and the inner core portion 100.

[0075] In this embodiment, the first protrusion 322 can strengthen the improved composite material. The cross-sectional area of ​​the connection between the first connecting part 321 and the first protrusion 322 is smaller than the cross-sectional area of ​​the connection between the first connecting part 321 and the inner core 100. Therefore, the first connecting part 321 can increase the connection strength between the first reinforcing head and the inner core 100.

[0076] Example 5

[0077] like Figure 5 As shown, the difference between Embodiment 5 and Embodiment 4 is that, based on Embodiment 4, the cross-sectional area of ​​the first connecting portion 321 extending from the inner core portion 100 toward the first protrusion portion 322 gradually decreases.

[0078] In this embodiment, the cross-sectional area of ​​the first connecting portion 321 extending from the inner core portion 100 toward the first protrusion portion 322 gradually decreases, thereby reducing the portion of the improved composite board with a relatively thick overall wall thickness, and thus reducing the local surface shrinkage caused by the first reinforcing rib 320.

[0079] Example 6

[0080] like Figure 6 As shown, an improved composite board includes: an inner core 100, an outer surface 200, a first reinforcing part, and a second reinforcing part.

[0081] The inner core 100 is configured as a resin-based composite part, preferably a thermoplastic or thermosetting resin part, and more preferably a thermoplastic resin part.

[0082] The paint layer is a polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, preferably a polyurethane, polyurea, or epoxy coating, and more preferably a polyurethane coating. The outer part 200 is made of polyurethane and has a thickness of 0.3mm-0.7mm, preferably 0.5mm. When the decorative layer of the outer part 200 is a paint layer, the thickness is 50um-75um, preferably 60um. The outer part 200 includes an observation surface and is connected to the inner core 100. The observation surface is located on the back side of the outer part 200 where the inner core 100 is located.

[0083] The first reinforcing part is connected to the inner core 100, and the inner core 100 is located between the outer appearance part 200 and the first reinforcing part. The first reinforcing part is a first reinforcing layer 310.

[0084] The second reinforcing part is connected to the first reinforcing part. The first reinforcing part is located between the inner core 100 and the second reinforcing part. The second reinforcing part is a second reinforcing layer 410. The thickness of the second reinforcing part is 1.5mm-3mm, specifically optimized to 2mm.

[0085] In this embodiment, the first reinforcing part is a first reinforcing layer 310, and the second reinforcing part is a second reinforcing layer 410. The first reinforcing layer 310 is provided on the back side of the inner core 100 relative to the outer surface 200, and the second reinforcing layer 410 is provided on the back side of the first reinforcing layer 310 relative to the inner core 100, which improves the dent resistance of the improved composite board and increases the overall strength.

[0086] Specifically, the first reinforcing part is configured as a continuous fiber-reinforced thermoplastic or thermosetting composite material to achieve overall reinforcement of the improved composite board.

[0087] Specifically, the second reinforcing part is configured as a thermoplastic or thermosetting resin part to achieve overall reinforcement of the improved composite board.

[0088] Example 7

[0089] like Figure 7 As shown, an improved composite board includes: an inner core 100, an outer surface 200, a first reinforcing part, and a second reinforcing part.

[0090] The inner core 100 is a resin-based composite, preferably a thermoplastic or thermosetting resin, and more preferably a thermoplastic resin. The thickness of the inner core 100 is 0.15mm-0.5mm, specifically optimized to 0.2mm. The outer surface 200 is made of polyurethane, with a thickness of 0.3mm-0.7mm, specifically optimized to 0.5mm. The outer surface 200 includes an observation surface, which is connected to the inner core 100. The observation surface is located on the back side of the outer surface 200 where the inner core 100 is located.

[0091] The first reinforcing part is connected to the inner core 100, and the inner core 100 is located between the outer part 200 and the first reinforcing part. The first reinforcing part is a first reinforcing layer 310, and the thickness of the first reinforcing part is 0.7mm-1.2mm, specifically optimized to 1mm.

[0092] The second reinforcing part is connected to the first reinforcing part. The first reinforcing part is located between the inner core 100 and the second reinforcing part. The second reinforcing part is a second reinforcing rib 420. The second reinforcing rib 420 includes a plurality of second reinforcing heads. The second reinforcing head includes a second connecting part 421. The second connecting part 421 is connected to the first reinforcing layer 310. The thickness of the second reinforcing part is 1.5mm-3mm, specifically optimized to 2mm.

[0093] In this embodiment, the first reinforcing part is the first reinforcing layer 310, and the second reinforcing part is the second reinforcing rib 420. The second reinforcing rib 420 has a partially hollowed-out structure on the back of the inner core 100, which serves to strengthen both the overall structure and the local area.

[0094] Specifically, the first reinforcing part is configured as a continuous fiber-reinforced thermoplastic or thermosetting composite material to achieve overall reinforcement of the improved composite board.

[0095] Specifically, the second reinforcing part is configured as a thermoplastic or thermosetting resin part to achieve localized reinforcement of the improved composite board.

[0096] Example 8

[0097] like Figure 8 As shown, the difference between Embodiment 8 and Embodiment 7 is that, based on Embodiment 7, the second reinforcing head further includes a second protrusion 422. The second protrusion 422 is integrally connected to the second connecting portion 421 and protrudes from the second connecting portion 421. The cross-sectional area of ​​the connection between the second connecting portion 421 and the second protrusion 422 is smaller than the cross-sectional area of ​​the connection between the second connecting portion 421 and the first reinforcing layer 310.

[0098] In this embodiment, the second protrusion 422 can strengthen the improved composite material. The cross-sectional area of ​​the connection between the second connecting part 421 and the second protrusion 422 is smaller than the cross-sectional area of ​​the connection between the second connecting part 421 and the first reinforcing layer 310. Therefore, the second connecting part 421 can increase the connection strength between the second reinforcing head and the first reinforcing layer 310.

[0099] Example 9

[0100] like Figure 9 As shown, the difference between Embodiment 9 and Embodiment 8 is that, based on Embodiment 9, the cross-sectional area of ​​the second connecting portion 421 extending from the first reinforcing layer 310 toward the second protrusion 422 gradually decreases.

[0101] In this embodiment, the cross-sectional area of ​​the second connecting portion 421 extending from the first reinforcing layer 310 toward the second protrusion 422 gradually decreases, reducing the portion of the improved composite board with a thicker overall wall thickness, thereby reducing the local surface shrinkage caused by the second reinforcing rib 420.

[0102] Example 10

[0103] like Figure 10 As shown, an improved composite board includes: an inner core 100, an outer surface 200, a first reinforcing part, and a second reinforcing part.

[0104] The inner core 100 is configured as a resin-based composite part, preferably a thermoplastic or thermosetting resin part, and more preferably a thermoplastic resin part.

[0105] The paint layer is a polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, preferably a polyurethane, polyurea, or epoxy coating, and more preferably a polyurethane coating. The outer part 200 is made of polyurethane and has a thickness of 0.3mm-0.7mm, preferably 0.5mm. When the decorative layer of the outer part 200 is a paint layer, the thickness is 50um-75um, preferably 60um. The outer part 200 includes an observation surface and is connected to the inner core 100. The observation surface is located on the back side of the outer part 200 where the inner core 100 is located.

[0106] The first reinforcing part is connected to the inner core 100, and the inner core 100 is located between the outer appearance part 200 and the first reinforcing part. The first reinforcing part is a first reinforcing rib 320, which includes a plurality of first reinforcing heads. Each first reinforcing head includes a first connecting part 321. The second reinforcing layer 410 is connected to the inner core 100 through the first connecting part 321.

[0107] The second reinforcing part is connected to the first reinforcing part, and the first reinforcing part is located between the inner core 100 and the second reinforcing part. The second reinforcing part is a second reinforcing layer 410. The thickness of the inner core 100 is 0.15mm-0.5mm, specifically optimized to 0.2mm. The thickness of the first reinforcing part is 0.7mm-1.2mm, specifically optimized to 1mm. The thickness of the second reinforcing part is 1.5mm-3mm, specifically optimized to 2mm.

[0108] In this embodiment, the first reinforcing part is the first reinforcing rib 320, which has a partially hollowed-out structure on the back of the inner core 100. The second reinforcing part is the second reinforcing layer 410, which serves to strengthen both the overall structure and the local area.

[0109] Specifically, the first reinforcing part is configured as a continuous fiber-reinforced thermoplastic or thermosetting composite material to achieve localized reinforcement of the improved composite board.

[0110] Specifically, the second reinforcing part is configured as a thermoplastic or thermosetting resin part to achieve overall reinforcement of the improved composite board.

[0111] Example 11

[0112] like Figure 11As shown, the difference between Embodiment Eleven and Embodiment Ten is that, based on Embodiment Ten, the first reinforcing head further includes a first protrusion 322, and the number of first connecting parts 321 is two. The two first connecting parts 321 are located at the two ends of the first protrusion 322 and are integrally connected. One first connecting part 321 is connected to the inner core 100, and the cross-sectional area of ​​the connection between the first connecting part 321 and the first protrusion 322 is smaller than the cross-sectional area of ​​the connection between the first connecting part 321 and the inner core 100. The other first connecting part 321 is connected to the second reinforcing layer 410, and the cross-sectional area of ​​the connection between the first connecting part 321 and the first protrusion 322 is smaller than the cross-sectional area of ​​the connection between the first connecting part 321 and the second reinforcing layer 410.

[0113] In this embodiment, the first protrusion 322 can strengthen the improved composite material, and the two first connecting parts 321 can increase the connection strength between the first reinforcing head and the inner core 100 and between the first reinforcing head and the second reinforcing layer 410, respectively.

[0114] Example 12

[0115] like Figure 12 As shown, the difference between Embodiment Twelve and Embodiment Eleven is that, based on Embodiment Eleven, the cross-sectional area of ​​the first connecting portion 321 extending from the inner core portion 100 toward the first protrusion 322 gradually decreases, and the cross-sectional area of ​​the first connecting portion 321 extending from the second reinforcing layer 410 toward the first protrusion 322 gradually decreases.

[0116] In this embodiment, the portion of the improved composite board with a thicker overall wall thickness is reduced, thereby reducing the localized surface shrinkage caused by the first reinforcing rib 320.

[0117] Example 13

[0118] like Figure 13 As shown, an improved composite board includes: an inner core 100, an outer surface 200, and a first reinforcing part. The outer surface 200 is composed of two layers, namely a polyurethane layer 201 and a paint layer 202. The paint layer 202 is located on the outer surface of the polyurethane layer 201. The inner core 100 is configured as a thermoplastic or thermosetting resin part.

[0119] The paint layer is a polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coating, preferably a polyurethane, polyurea, or epoxy coating, and more preferably a polyurethane coating. The outer part 200 is made of polyurethane, and its thickness is 0.3mm-0.7mm, preferably 0.5mm. When the decorative layer of the outer part 200 is a paint layer, its thickness is 50um-75um, preferably 60um. The outer part 200 includes an observation surface, and the outer part 200 is connected to the inner core 100. The observation surface is located on the back side of the outer part 200 where the inner core 100 is located. The first reinforcing part is the first reinforcing rib 320. In addition, in order to facilitate and better realize the body color matching, the exterior part 200 consists of two layers, namely a polyurethane layer 201 and a paint layer 202. It is impossible to process special colors using a single polyurethane layer. Therefore, after the polyurethane layer 201 is injection molded in the mold, a paint layer 202 is added to its outer surface. The polyurethane layer is also a polyurethane part. The paint layer 202 is located on the outer surface of the polyurethane layer 201. The thickness of the polyurethane layer 201 is 0.3mm-0.7mm, specifically optimized to 0.5mm. The thickness of the paint layer 202 is 50-75um, specifically optimized to 60um.

[0120] An automotive trim component, comprising the aforementioned improved composite sheet, wherein the automotive trim component can be an inner or outer panel of a car door panel, an inner or outer panel of a car tailgate, an inner or outer panel of a car hood, a fender, a roof, or other body parts, or it can be a cargo box of a logistics vehicle, or it can be applied to flying cars, such as including an outer fuselage skin or an inner fuselage skin.

[0121] like Figures 1-13 As shown, such as an automobile door panel, it includes an improved composite material as described in any one of Embodiments 1 to 13.

[0122] Specifically, for example, in an outer door panel of a car, the inner core 100 is located on the relatively inner side of the car, and the outer appearance 200 is located on the relatively outer side of the car; for example, in an inner door panel of a car, the inner core 100 is located on the relatively outer side of the car, and the outer appearance 200 is located on the relatively inner side of the car.

[0123] like Figures 1-13 As shown, such as a car tailgate, it includes a composite material as described in any one of Embodiments 1 to 13, which can specifically be the outer panel or inner panel of the car tailgate.

[0124] like Figures 1-13 As shown, such as aircraft fuselage skin or automobile hood coverings, including a composite sheet material as described in any one of Embodiments 1 to 13, such automobile trim can be the inner or outer panel of the front hood of an automobile, fender, roof and other body parts, or it can be a logistics vehicle compartment, or it can be applied to flying cars, such as including the outer fuselage skin or the inner fuselage skin.

Claims

1. An improved composite board, characterized in that, include: The inner core is made of a resin-based composite material; An outer surface portion, which is configured as a decorative layer, includes an observation surface, is connected to the inner core portion, and the observation surface is located on the back side of the outer surface portion on which the inner core portion is located.

2. The improved composite board as described in claim 1, characterized in that: The decorative layer is made of polyurethane, polyurea, nylon, dicyclopentadiene, or epoxy coatings.

3. An improved composite board as described in claim 1, characterized in that: The decorative layer is a paint layer.

4. An improved composite board as described in claim 1, characterized in that: The thickness of the inner core is 0.15mm-0.5mm.

5. An improved composite board as described in claim 1, characterized in that: It also includes a first reinforcing part, which is connected to the inner core part. The inner core part is located between the outer part and the first reinforcing part. The first reinforcing part is a first reinforcing layer or a first reinforcing rib.

6. An improved composite board as described in claim 5, characterized in that: The thickness of the first reinforcing part is 0.7mm-1.2mm.

7. An improved composite board as described in claim 5, characterized in that: The first reinforcing part is configured as a continuous fiber reinforced thermoplastic composite.

8. An improved composite board as described in claim 5, characterized in that: The first reinforcing part is a first reinforcing rib, which includes a plurality of first reinforcing heads. Each first reinforcing head includes a first connecting part, which is connected to the inner core.

9. An improved composite board as described in claim 8, characterized in that: The first reinforcing head also includes a first protrusion, which is integrally connected to the first connecting portion and protrudes from the first connecting portion. The cross-sectional area of ​​the connection between the first connecting portion and the first protrusion is smaller than the cross-sectional area of ​​the connection between the first connecting portion and the inner core.

10. An improved composite board as described in claim 9, characterized in that: The cross-sectional area of ​​the first connecting portion extending from the inner core toward the first protrusion gradually decreases.

11. An improved composite board as described in claim 5, characterized in that: It also includes a second reinforcing part, which is connected to the first reinforcing part. The first reinforcing part is located between the inner core and the second reinforcing part. The second reinforcing part is a second reinforcing layer or a second reinforcing rib.

12. An improved composite board as described in claim 11, characterized in that: The thickness of the second reinforcing part is 1.5mm-3mm.

13. An improved composite board as described in claim 11, characterized in that: The second reinforcing part is a thermoplastic or thermosetting resin part.

14. An improved composite board as described in claim 11, characterized in that: The first reinforcing part is a first reinforcing layer, the second reinforcing part is a second reinforcing rib, the second reinforcing rib includes a plurality of second reinforcing heads, the second reinforcing head includes a second connecting part, and the second connecting part is connected to the first reinforcing layer.

15. An improved composite board as described in claim 14, characterized in that: The second reinforcing head also includes a second protrusion, which is integrally connected to the second connecting portion and protrudes from the second connecting portion. The cross-sectional area of ​​the connection between the second connecting portion and the second protrusion is smaller than the cross-sectional area of ​​the connection between the second connecting portion and the first reinforcing layer.

16. An improved composite board as described in claim 15, characterized in that: The cross-sectional area of ​​the second connecting portion gradually decreases in the direction extending from the first reinforcing layer toward the second protrusion.

17. An improved composite board as described in claim 11, characterized in that: The first reinforcing part is a first reinforcing rib, and the second reinforcing part is a second reinforcing layer. The first reinforcing rib includes a plurality of first reinforcing heads, and the first reinforcing head includes a first connecting part. The second reinforcing layer is connected to the inner core part through the first connecting part.

18. An improved composite board as described in claim 17, characterized in that: The first reinforcing head further includes a first protrusion. There are two first connecting parts. The two first connecting parts are located at both ends of the first protrusion and are integrally connected. One first connecting part is connected to the inner core. The cross-sectional area of ​​the connection between the first connecting part and the first protrusion is smaller than the cross-sectional area of ​​the connection between the first connecting part and the inner core. The other first connecting part is connected to the second reinforcing layer. The cross-sectional area of ​​the connection between the first connecting part and the first protrusion is smaller than the cross-sectional area of ​​the connection between the first connecting part and the second reinforcing layer.

19. An improved composite board as described in claim 18, characterized in that: The cross-sectional area of ​​the first connecting portion extending from the inner core toward the first protrusion gradually decreases, and the cross-sectional area of ​​the first connecting portion extending from the second reinforcing layer toward the first protrusion gradually decreases.

20. An improved composite board as described in claim 1, characterized in that: The exterior part consists of a polyurethane layer and a paint layer, wherein the polyurethane layer is located on the outer surface of the inner core and the paint layer is located on the outer surface of the polyurethane layer.

21. A car trim piece, characterized in that, Including an improved composite board as described in any one of claims 1-20.

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