Improved composite board and automobile ornament

Abstract

The utility model 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, an outer core part and an outer core 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 utility model has the beneficial effects that the appearance part is connected with the inner core part, the observation surface of the appearance part can be painted with automobile body color, and the inner core part can play a reinforcing role, so that the original process needing multiple paint spraying is effectively replaced, the process is simplified, and the requirement of an appearance A-level surface can be met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and relates to an improved composite board and automobile ornament. BACKGROUND

[0002] The existing automobile board is generally composed of one or more of ABS (acrylonitrile-butadiene-styrene plastic), PVC (polyvinyl chloride), waterproof fiber board and PP (polypropylene), wherein the PP board is a thermoplastic sheet that can be low-pressure and hot-formed, has good air permeability, good sound insulation performance and easy installation, and is often directly used as an automobile board.

[0003] However, the polypropylene injection-molded board popular on the market has a strength problem and has a large improvement space, since it needs multiple paint spraying processes and has a complex process if a common paint spraying scheme is adopted. SUMMARY

[0004] The utility model discloses a kind of improved composite board and automobile ornament to solve the above-mentioned problems existing in prior art.

[0005] The utility model discloses the purpose can be realized by the following technical scheme: an improved composite board, comprising:

[0006] Inner core portion, it is set as resin-based composite part;

[0007] Appearance portion, it is set as decorative layer, the appearance portion includes observation surface, the appearance portion is connected with the inner core portion, and the observation surface is located on the back of the inner core portion on the appearance portion.

[0008] In the above-mentioned improved composite board, the decorative layer is polyurethane or polyurea, nylon, dicyclopentadiene or epoxy coating.

[0009] In the above-mentioned improved composite board, the decorative layer is paint layer.

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

[0011] In the above-mentioned improved composite board, the thickness of the decorative layer when being polyurethane or polyurea, nylon, dicyclopentadiene or epoxy coating is 0.3mm-0.7mm.

[0012] In the above-mentioned improved composite board, the thickness of the decorative layer when being paint layer is 50um-75um, preferably 60um.

[0013] In the improved composite board, a first reinforcing part is further included, the first reinforcing part is connected with the inner core part, the inner core part is located between the appearance part and the first reinforcing part, and the first reinforcing part is a first reinforcing layer or a first reinforcing rib.

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

[0015] In the improved composite board, the first reinforcing part is a continuous fiber reinforced thermoplastic or thermoset composite.

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

[0017] In the improved composite board, the first reinforcing head further includes a first protruding part integrally connected with the first connecting part and protruding from the first connecting part, and the connecting cross-sectional area of the first connecting part and the first protruding part is smaller than the connecting cross-sectional area of the first connecting part and the inner core part.

[0018] In the improved composite board, the cross-sectional area of the first connecting part gradually decreases from the inner core part to the first protruding part.

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

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

[0021] In the improved composite board, the second reinforcing part is a thermoplastic or thermoset resin part.

[0022] In the 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, and the second reinforcing head includes a second connecting part connected with the first reinforcing layer.

[0023] In the improved composite board, the second reinforcing head further comprises a second protruding part, the second protruding part is integrally connected with the second connecting part and protrudes from the second connecting part, and a connecting cross-sectional area of the second connecting part at a connection with the second protruding part is smaller than a connecting cross-sectional area of the second connecting part at a connection with the first reinforcing layer.

[0024] In the improved composite board, a cross-sectional area of the second connecting part gradually decreases in a direction extending from the first reinforcing layer to the second protruding part.

[0025] In the improved composite board, the first reinforcing head further comprises a first protruding part, the number of the first connecting parts is two, the two first connecting parts are integrally connected at two ends of the first protruding part respectively, one of the first connecting parts is connected with the inner core part, a connecting cross-sectional area of the first connecting part at a connection with the first protruding part is smaller than a connecting cross-sectional area of the first connecting part at a connection with the inner core part, and the other first connecting part is connected with the second reinforcing layer, a connecting cross-sectional area of the first connecting part at a connection with the first protruding part is smaller than a connecting cross-sectional area of the first connecting part at a connection with the second reinforcing layer.

[0026] In the improved composite board, a cross-sectional area of the second connecting part gradually decreases in a direction extending from the first reinforcing layer to the second protruding part.

[0027] In the improved composite board, a cross-sectional area of the second connecting part gradually decreases in a direction extending from the first reinforcing layer to the second protruding part.

[0028] In the improved composite board, the appearance part is composed of two layers, i.e., a polyurethane layer and a paint layer, and the paint layer is located on an outer surface of the polyurethane layer.

[0029] In addition, the improved composite board can be applied to an aircraft, such as an aircraft body skin, including an outer body skin or an inner body skin.

[0030] Compared with the prior art, the improved composite board has the following beneficial effects:

[0031] 1. The appearance part is connected with the inner core part, the appearance part is polyurethane, also called PRU, and the color of the vehicle body can be directly formed at the appearance of the inner core part by adding color paste, which effectively replaces the original process of multiple paint spraying, simplifies the process, and can meet the appearance A-level surface requirement.

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

[0033] 3. The first reinforcing rib is a structure of partially hollowing on the back of the inner core part, which further reduces the weight while playing a local reinforcing role.

[0034] 4. The first reinforcing part is a first reinforcing layer, and the second reinforcing part is a second reinforcing layer, and the first reinforcing layer is arranged on the back of the inner core part relative to the appearance part, and the second reinforcing layer is arranged on the back 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 a first reinforcing layer, and the second reinforcing part is a second reinforcing rib, and the second reinforcing rib is a structure of partially hollowing on the back of the inner core part, which plays a role of overall strengthening and local strengthening.

[0036] 6. The first reinforcing part is a first reinforcing rib, and the second reinforcing part is a second reinforcing layer, which plays a role of overall strengthening and local strengthening.

[0037] 7. The appearance part adopts a polyurethane layer plus a paint layer mode, which can solve the problem that special color of polyurethane layer cannot be processed alone, and better solves the appearance color problem. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a structure schematic view of the embodiment one of the utility model.

[0039] Figure 2 It is a structure schematic view of the embodiment two of the utility model.

[0040] Figure 3 It is a structure schematic view of the embodiment three of the utility model.

[0041] Figure 4 It is a structure schematic view of the embodiment four of the utility model.

[0042] Figure 5 It is a structure schematic view of the embodiment five of the utility model.

[0043] Figure 6 It is a structure schematic view of the embodiment six of the utility model.

[0044] Figure 7 Figure 7 is a structural schematic diagram of an embodiment of the present application.

[0045] Figure 8 Figure 8 is a structural schematic diagram of an embodiment of the present application.

[0046] Figure 9 Figure 9 is a structural schematic diagram of an embodiment of the present application.

[0047] Figure 10 Figure 10 is a structural schematic diagram of an embodiment of the present application.

[0048] Figure 11 Figure 11 is a structural schematic diagram of an embodiment of the present application.

[0049] Figure 12 Figure 12 is a structural schematic diagram of an embodiment of the present application.

[0050] Figure 13 Figure 13 is a structural schematic diagram of an embodiment of the present application.

[0051] In the figure, 100, inner core part; 200, appearance part; polyurethane layer 201; paint layer 202; 310, first reinforcing layer; 320, first reinforcing rib; 321, first connecting part; 322, first protruding part; 410, second reinforcing layer; 420, second reinforcing rib; 421, second connecting part; 422, second protruding part. DETAILED DESCRIPTION

[0052] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application 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 application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0054] In addition, the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0055] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirect connection through intermediate medium, can be the intercommunication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0056] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but it must be based on that ordinary skilled person in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not in the protection scope required by the utility model.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

[0058] Embodiment one

[0059] As Figure 1 The utility model discloses an improved composite board, which comprises an inner core part 100 and an appearance part 200.

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

[0061] In the embodiment, the appearance part 200 is connected with the inner core part 100, the observation surface of the appearance part 200 can be sprayed with the body color, the inner core part 100 can play a reinforcing role, effectively improves the problem that the existing improved composite board is difficult to be sprayed, the inner core part 100 realizes lightweight, improves the dent resistance of the improved composite board, and increases the overall strength.

[0062] Embodiment two

[0063] As shown in the embodiment, an improved composite board comprises an inner core part 100, an appearance part 200, and a first reinforcing part. Figure 2

[0064] The inner core part 100 is a resin-based composite part, preferably a thermoplastic or thermosetting resin part, and more preferably a thermoplastic resin part. The thickness of the inner core part 100 is 0.15-0.5 mm, and is preferably 0.2 mm. The paint layer is polyurethane or polyurea, nylon, dicyclopentadiene, or epoxy paint, preferably polyurethane, polyurea, or epoxy paint, and more preferably polyurethane paint. The appearance part 200 is polyurethane, and the thickness of the appearance part 200 is 0.3-0.7 mm, and is preferably 0.5 mm. The decorative layer of the appearance part 200 is a paint layer, and the thickness of the paint layer is 50-75 um, and is preferably 60 um. The appearance part 200 comprises an observation surface, and the observation surface is located on the back of the surface of the inner core part 100 on the appearance part 200.

[0065] The first reinforcing part is connected with the inner core part 100, and the inner core part 100 is located between the appearance 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 0.7-1.2 mm, and is preferably 1 mm. In the embodiment, the first reinforcing part is the first reinforcing layer 310, and the first reinforcing layer 310 is arranged on the back of the inner core part 100 relative to the appearance part 200. The improved composite board has improved dent resistance and increased overall strength.

[0066] Specifically, the first reinforcing part is a continuous fiber reinforced thermoplastic or thermosetting composite part, which realizes the overall reinforcement of the improved composite board.

[0067] Embodiment three

[0068] As shown in the embodiment, an improved composite board comprises an inner core part 100, an appearance part 200, and a first reinforcing part. Figure 3

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

[0070] Among them, the first reinforcement part is connected to the inner core part 100, and the inner core part 100 is located between the appearance part 200 and the first reinforcement part. The first reinforcement part is a first reinforcement rib 320, and the first reinforcement rib 320 includes multiple first reinforcement heads. The first reinforcement head includes a first connection part 321, and the first connection part 321 is connected to the inner core part 100. The thickness of the first reinforcement part is 0.7mm-1.2mm, and the specific optimization is 1mm.

[0071] In this embodiment, the first reinforcing rib 320 is a partially hollowed structure formed on the back surface of the inner core 100, which not only plays a role of local reinforcement but also further reduces the weight.

[0072] Specifically, the first reinforcement portion is configured as a continuous fiber reinforced thermoplastic or thermosetting composite member to achieve local reinforcement of the improved composite plate.

[0073] Example 4

[0074] like Figure 4 As shown, the difference between Example 4 and Example 3 is that, based on Example 3, the first reinforcement head also includes a first protrusion 322, the first protrusion 322 is integrally connected to the first connection part 321 and protrudes from the first connection part 321, and the connection cross-sectional area at the connection between the first connection part 321 and the first protrusion 322 is smaller than the connection cross-sectional area at the connection between the first connection part 321 and the inner core part 100.

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

[0076] Example Five

[0077] As shown in the figure, the difference between Example Five and Example Four is that the cross-sectional area of the first connecting part 321 gradually decreases from the inner core part 100 to the first protruding part 322 based on Example Four. Figure 5

[0078] In this embodiment, the cross-sectional area of the first connecting part 321 gradually decreases from the inner core part 100 to the first protruding part 322, which reduces the part of the overall wall thickness of the improved composite panel, thereby reducing the local surface indentation caused by the first reinforcing rib 320.

[0079] Example Six

[0080] As shown in the figure, an improved composite panel, comprising: an inner core part 100, an appearance part 200, and a first reinforcing part and a second reinforcing part. Figure 6

[0081] Among them, the inner core part 100 is set as a resin-based composite, preferably a thermoplastic or thermosetting resin, and more preferably a thermoplastic resin.

[0082] Among them, the paint layer is a polyurethane or polyurea, nylon, dicyclopentadiene or epoxy coating, preferably a polyurethane, polyurea or epoxy coating, and further preferably a polyurethane coating. The appearance part 200 is set as polyurethane, and the thickness of the appearance part 200 is 0.3mm-0.7mm, preferably 0.5mm. When the decorative layer of the appearance part 200 is set as a paint layer, the thickness is 50um-75um, preferably 60um. The appearance part 200 includes an observation surface, and the observation surface is located on the back of the surface of the inner core part 100 on the appearance part 200.

[0083] Among them, the first reinforcing part is connected with the inner core part 100, and the inner core part 100 is located between the appearance part 200 and the first reinforcing part, and the first reinforcing part is a first reinforcing layer 310.

[0084] Among them, the second reinforcing part is connected with the first reinforcing part, and the first reinforcing part is located between the inner core part 100 and the second reinforcing part, and the second reinforcing part is a second reinforcing layer 410. The thickness of the second reinforcing part is 1.5mm-3mm, and the specific optimization is 2mm.

[0085] ​​In this embodiment, the first reinforcement part is the first reinforcement layer 310, and the second reinforcement part is the second reinforcement layer 410. The first reinforcement layer 310 is arranged on the back side of the inner core part 100 relative to the appearance part 200, and the second reinforcement layer 410 is arranged on the back side of the first reinforcement layer 310 relative to the inner core part 100, thereby improving the dent resistance of the improved composite board material and increasing the overall strength.

[0086] Specifically, the first reinforcement portion is configured as a continuous fiber reinforced thermoplastic or thermosetting composite member to achieve overall reinforcement of the improved composite plate.

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

[0088] Example 7

[0089] like Figure 7 As shown, an improved composite plate comprises: an inner core portion 100, an appearance portion 200, a first reinforcement portion and a second reinforcement portion.

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

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

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

[0093] In this embodiment, the first reinforcement part is the first reinforcement layer 310, and the second reinforcement part is the second reinforcement rib 420. The second reinforcement rib 420 is a partially hollowed structure formed on the back side of the inner core 100, which plays a role in overall reinforcement and local reinforcement.

[0094] Specifically, the first reinforcement portion is configured as a continuous fiber reinforced thermoplastic or thermosetting composite member to achieve overall reinforcement of the improved composite plate.

[0095] Specifically, the second reinforcement portion is configured as a thermoplastic or thermosetting resin component to achieve local reinforcement of the improved composite plate.

[0096] Example 8

[0097] like Figure 8 As shown, the difference between Example 8 and Example 7 is that, based on Example 7, the second reinforcement head also includes a second protrusion 422, the second protrusion 422 is integrally connected to the second connection part 421 and protrudes from the second connection part 421, and the connection cross-sectional area at the connection between the second connection part 421 and the second protrusion 422 is smaller than the connection cross-sectional area at the connection between the second connection part 421 and the first reinforcement layer 310.

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

[0099] Example 9

[0100] like Figure 9 As shown, the difference between the ninth embodiment and the eighth embodiment is that, based on the ninth embodiment, the cross-sectional area of ​​the second connection portion 421 in the direction extending from the first reinforcement layer 310 toward the second protruding portion 422 gradually decreases.

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

[0102] Example 10

[0103] like Figure 10 As shown, an improved composite plate comprises: an inner core portion 100, an appearance portion 200, a first reinforcement portion and a second reinforcement portion.

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

[0105] The appearance part 200 is provided with a polyurethane paint layer, the thickness of the paint layer is 0.3mm-0.7mm, preferably 0.5mm, the thickness of the paint layer is 50um-75um, preferably 60um, the appearance part 200 includes an observation surface, the appearance part 200 is connected with the inner core part 100, and the observation surface is located on the back of the surface of the inner core part 100.

[0106] The first reinforcing part is connected with the inner core part 100, the inner core part 100 is located between the appearance part 200 and the first reinforcing part, the first reinforcing part is a first reinforcing rib 320, the first reinforcing rib 320 includes a plurality of first reinforcing heads, and the first reinforcing heads include a first connecting part 321.

[0107] The second reinforcing part is connected with the first reinforcing part, the first reinforcing part is located between the inner core part 100 and the second reinforcing part, and the second reinforcing part is a second reinforcing layer 410.

[0108] In the embodiment, the first reinforcing part is a first reinforcing rib 320, the first reinforcing rib 320 is a structure formed by partially hollowing the back of the inner core part 100, and the second reinforcing part is a second reinforcing layer 410, which simultaneously plays a role of overall strengthening and local strengthening.

[0109] Specifically, the first reinforcing part is provided as a continuous fiber reinforced thermoplastic or thermoset composite, which realizes the local strengthening of the improved composite panel.

[0110] Specifically, the second reinforcing part is provided as a thermoplastic or thermoset resin part, which realizes the overall strengthening of the improved composite panel.

[0111] Embodiment eleven

[0112] As Figure 11As shown, the difference between Example 11 and Example 10 is that, on the basis of Example 10, the first reinforcement head further includes a first protrusion 322, the number of the first connection parts 321 is two, and the two first connection parts 321 are respectively located at both ends of the first protrusion 322 and are integrally connected, one first connection part 321 is connected to the inner core part 100, and the connection cross-sectional area at the connection between the first connection part 321 and the first protrusion 322 is smaller than the connection cross-sectional area at the connection between the first connection part 321 and the inner core part 100, and the other first connection part 321 is connected to the second reinforcement layer 410, and the connection cross-sectional area at the connection between the first connection part 321 and the first protrusion 322 is smaller than the connection cross-sectional area at the connection between the first connection part 321 and the second reinforcement layer 410.

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

[0114] Example 12

[0115] like Figure 12 As shown, the difference between Example 12 and Example 11 is that, based on Example 11, the cross-sectional area of ​​the first connecting portion 321 extending from the inner core portion 100 toward the first protruding portion 322 gradually decreases, and the cross-sectional area of ​​the first connecting portion 321 extending from the second reinforcement layer 410 toward the first protruding portion 322 gradually decreases.

[0116] In this embodiment, the portion of the improved composite plate with a relatively thick wall thickness is reduced, thereby reducing the local surface shrinkage caused by the first reinforcing rib 320 .

[0117] Example 13

[0118] like Figure 13 As shown, an improved composite panel comprises: an inner core portion 100, an appearance portion 200 and a first reinforcement portion, wherein the appearance portion 200 is divided into two layers, namely a polyurethane layer 201 and a paint layer 202, and the paint layer 202 is located on the outer surface of the polyurethane layer 201, wherein the inner core portion 100 is configured as a thermoplastic or thermosetting resin part.

[0119] The paint layer is polyurethane or polyurea, nylon, dicyclopentadiene or epoxy paint, preferably polyurethane, polyurea or epoxy paint, and further preferably polyurethane paint. The appearance part 200 is polyurethane, and the thickness of the appearance part 200 is 0.3-0.7 mm, preferably 0.5 mm. The appearance part 200 includes an observation surface, and the appearance part 200 is connected to the inner core part 100. The observation surface is located on the back of the surface of the inner core part 100. The first reinforcing part is a first reinforcing rib 320. In order to better realize color matching of the vehicle body, the appearance part 200 is composed of two layers, namely a polyurethane layer 201 and a paint layer 202. The single polyurethane layer cannot be used for special colors, so the polyurethane layer 201 is molded by in-mold injection, and then the paint layer 202 is added to the outer surface of the polyurethane layer 201. The thickness of the polyurethane layer 201 is 0.3-0.7 mm, and the thickness of the paint layer 202 is 50-75 um.

[0120] The automobile trim part includes the improved composite sheet. The automobile trim part can be an inner panel or an outer panel of a vehicle door panel, an inner panel or an outer panel of a vehicle tailgate, an inner panel or an outer panel of a vehicle front cover, a fender, a roof, etc. The automobile trim part can also be a vehicle compartment of a logistics vehicle, and can also be applied to a flying vehicle, such as a vehicle body outer skin or a vehicle body inner skin.

[0121] As shown in Figures 1-13 , the automobile trim part includes the improved composite sheet according to any one of Embodiment 1 to Embodiment 13.

[0122] Specifically, the automobile trim part is an outer door panel of a vehicle, and the inner core part 100 is located on the opposite inner side of the vehicle, and the appearance part 200 is located on the opposite outer side of the vehicle. The automobile trim part is an inner door panel of a vehicle, and the inner core part 100 is located on the opposite outer side of the vehicle, and the appearance part 200 is located on the opposite inner side of the vehicle.

[0123] As shown in Figures 1-13 , the automobile trim part includes the improved composite sheet according to any one of Embodiment 1 to Embodiment 13. Specifically, the automobile trim part can be an outer panel or an inner panel of a vehicle tailgate.

[0124] As shown in Figures 1-13 , the automobile trim part includes the improved composite sheet according to any one of Embodiment 1 to Embodiment 13. Specifically, the automobile trim part can be an outer panel or an inner panel of a vehicle tailgate.

Claims

1. An improved composite board material, characterized by, The application relates to a decorative layer for a vehicle interior, comprising: an inner core part arranged as a resin-based composite; an appearance part arranged as a decorative layer, the appearance part comprising an observation surface, the appearance part being connected to the inner core part, the observation surface being located on the appearance part opposite the surface where the inner core part is located.

2. The improved composite board of claim 1, wherein: The decorative layer is polyurethane or polyurea, nylon, dicyclopentadiene or epoxy paint.

3. The improved composite board of claim 1, wherein: The decorative layer is a paint layer.

4. The improved composite board of claim 1, wherein: The thickness of the inner core part is 0.15-0.5 mm.

5. The improved composite board of claim 1, wherein: The application further comprises a first reinforcing part, the first reinforcing part being connected to the inner core part, the inner core part being located between the appearance part and the first reinforcing part, the first reinforcing part being a first reinforcing layer or a first reinforcing rib.

6. The improved composite sheet material of claim 5, wherein: The thickness of the first reinforcing part is 0.7-1.2 mm.

7. The improved composite sheet material of claim 5, wherein: The first reinforcing part is arranged as a continuous fiber-reinforced thermoplastic composite.

8. The improved composite sheet material of claim 5, wherein: The first reinforcing part is a first reinforcing rib, the first reinforcing rib comprising a plurality of first reinforcing heads, the first reinforcing heads comprising first connecting parts, the first connecting parts being connected to the inner core part.

9. The improved composite sheet material of claim 8, wherein: The first reinforcing head further comprises a first protruding part, the first protruding part being integrally connected to the first connecting part and protruding from the first connecting part, the connecting cross-sectional area at the connection between the first connecting part and the first protruding part being smaller than the connecting cross-sectional area at the connection between the first connecting part and the inner core part.

10. The improved composite sheet material of claim 9, wherein: The cross-sectional area of the first connecting part gradually decreases from the inner core part to the first protruding part.

11. The improved composite board of claim 5, wherein: The application further comprises a second reinforcing part, the second reinforcing part being connected to the first reinforcing part, the first reinforcing part being located between the inner core part and the second reinforcing part, the second reinforcing part being a second reinforcing layer or a second reinforcing rib.

12. The improved composite sheet material of claim 11, wherein: The thickness of the second reinforcing part is 1.5-3 mm.

13. The improved composite sheet material of claim 11, wherein: The second reinforcing part is arranged as a thermoplastic or thermosetting resin part.

14. The improved composite sheet material of claim 11, wherein: The first reinforcing part is a first reinforcing layer, the second reinforcing part being a second reinforcing rib, the second reinforcing rib comprising a plurality of second reinforcing heads, the second reinforcing heads comprising second connecting parts, the second connecting parts being connected to the first reinforcing layer.

15. The improved composite sheet material of claim 14, wherein: The second reinforcing head further comprises a second protruding part, the second protruding part being integrally connected to the second connecting part and protruding from the second connecting part, the connecting cross-sectional area at the connection between the second connecting part and the second protruding part being smaller than the connecting cross-sectional area at the connection between the second connecting part and the first reinforcing layer.

16. The improved composite sheet material of claim 15, wherein: The cross-sectional area of the second connecting part gradually decreases from the first reinforcing layer to the second protruding part.

17. The improved composite board material according to claim 11, characterized in that: The first reinforcing part is a first reinforcing rib, the second reinforcing part being a second reinforcing layer, the first reinforcing rib comprising a plurality of first reinforcing heads, the first reinforcing heads comprising first connecting parts, the second reinforcing layer being connected to the inner core part through the first connecting parts.

18. The improved composite sheet material of claim 17, wherein: The first reinforcing head further comprises a first protruding part, the number of the first connecting parts is two, the two first connecting parts are respectively integrally connected at two ends of the first protruding part, one of the first connecting parts is connected with the inner core part, the connecting cross-sectional area of the first connecting part at the connection with the first protruding part is smaller than the connecting cross-sectional area of the first connecting part at the connection with the inner core part, the other first connecting part is connected with the second reinforcing layer, the connecting cross-sectional area of the first connecting part at the connection with the first protruding part is smaller than the connecting cross-sectional area of the first connecting part at the connection with the second reinforcing layer.

19. The improved composite sheet material of claim 18, wherein: The cross-sectional area of the first connecting part gradually decreases from the inner core part to the first protruding part, and the cross-sectional area of the first connecting part gradually decreases from the second reinforcing layer to the first protruding part.

20. The improved composite board of claim 1, wherein: The appearance part is composed of a polyurethane layer and a paint layer, wherein the polyurethane layer is located on the outer surface of the inner core part, and the paint layer is located on the outer surface of the polyurethane layer.

21. An automotive trim piece, characterized by, The improved composite board comprises the improved composite board according to any one of claims 1-20.

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