CN211808274U

CN211808274U - Composite board

Info

Publication number: CN211808274U
Application number: CN201922371011.1U
Authority: CN
Inventors: 沙月华; 邓富荣; 郭茂萍; 秦庆戊; 陈俊琛; 王东晖
Original assignee: 5elem Material Scientific Jiangsu Co ltd
Current assignee: 5elem Material Scientific Jiangsu Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-30
Anticipated expiration: 2029-12-25

Abstract

A composite board comprises a first surface base material, a second surface base material and a middle core material positioned between the first surface base material and the second surface base material, wherein the middle core material has different subareas. Compare in prior art material evenly distributed's composite board, the utility model discloses a partition design can carry out the lectotype to the material to the different requirements of each subregion, and the different characteristics of the different materials of full play have improved the flexibility of design.

Description

Composite board

Technical Field

The utility model relates to a composite board belongs to for example electronic and electrical equipment's casing technical field.

Background

As electronic and electrical devices (e.g., notebook computers) have higher and higher requirements for housings, attention is being paid to composite boards having a small thickness and a good structural strength. Existing composite panels typically include upper and lower surface layer substrates with an intermediate core positioned therebetween. The composite board needs to be integrated with resin by means of injection molding, for example, to form the housing of the electronic and electrical equipment.

In the prior art, the material of the middle core material is uniformly distributed on the composite board, and the performance requirements of the board on each position are different, so that the functional and diversified design of each performance can not be realized by adopting the mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a higher composite board of middle core design flexibility.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a composite board comprises a first surface base material, a second surface base material and a middle core material positioned between the first surface base material and the second surface base material, wherein the middle core material has different subareas.

As a further improved technical solution of the present invention, the different partitions include a first partition and a second partition, wherein the first partition and the second partition are different in at least one of material, porosity, thickness, hardness, density, flexural modulus, and heat distortion temperature.

As a further improved technical solution of the present invention, the first partition is an intermediate portion, and the second partition is a surrounding portion surrounding the intermediate portion.

As a further improved technical solution of the present invention, the first partition includes at least two sub-partitions.

As a further improved technical solution of the present invention, the at least two sub-partitions are arranged at intervals, and the periphery of each sub-partition is surrounded by the second partition; or

The at least two sub-partitions are contiguous.

As a further improved technical solution of the present invention, the first partition is made of Polymethacrylimide (PMI) foam.

As a further improved technical scheme of the utility model, the second subregion is made by hollow bead filling resin.

As the technical proposal of the further improvement of the utility model, the hollow microsphere filling resin is hollow glass microsphere filling epoxy resin or polycarbonate resin.

As the technical proposal of the further improvement of the utility model, the middle core material is made of at least one material of foam material, hollow microsphere filling resin material, honeycomb material, corrugated plate, resin sheet, composite material and metal.

As a further improved technical solution of the present invention, the first surface substrate is made of at least one material selected from the group consisting of a carbon fiber reinforced composite material, a glass fiber reinforced composite material, a basalt fiber reinforced composite material, a kevlar fiber reinforced composite material, and a metal sheet; the second surface layer substrate is made of at least one material of a carbon fiber reinforced composite material, a glass fiber reinforced composite material, a basalt fiber reinforced composite material, a Kevlar fiber reinforced composite material and a metal sheet.

Compare the composite board material evenly distributed of core material in the middle of in prior art, the utility model discloses a partition design can carry out the lectotype to the material to the different requirements of each subregion, and the different characteristics of full play different materials have improved the flexibility of design.

Drawings

Fig. 1 is a schematic sectional view of the composite board of the present invention.

Fig. 2 is an exploded perspective view of the composite board of the present invention.

Fig. 3 is a plan view of the intermediate core in fig. 2 in a first embodiment.

Fig. 4 is an exploded perspective view of fig. 3.

Fig. 5 is a plan view of fig. 3 in a second embodiment.

Fig. 6 is a plan view of fig. 3 in a third embodiment.

Fig. 7 is a plan view of fig. 3 in a fourth embodiment.

Fig. 8 is a plan view of fig. 3 in the fifth embodiment.

Detailed Description

Referring to fig. 1 to 4, the present invention discloses a composite board 100, which includes a first surface substrate 1, a second surface substrate 2, and a middle core 3 located between the first surface substrate 1 and the second surface substrate 2. In an embodiment of the present invention, the thickness of the composite board 100 is 0.3 mm to 3 mm. The composite board 100 is integrated with resin by injection molding, for example, to form a housing of an electronic appliance.

Referring to fig. 2 to 7, the middle core 3 has different sections. The different partitions include a first partition 31 and a second partition 32, wherein the first partition 31 and the second partition 32 are different in at least one of material, porosity, thickness, hardness, density, flexural modulus, heat distortion temperature.

Referring to fig. 3 and 7, in some embodiments of the intermediate core 3 of the present invention, the first partition 31 is an intermediate portion, and the second partition 32 is a surrounding portion surrounding the intermediate portion. It should be noted that the description of the "middle portion" in the present invention is intended to express the positional relationship between the first partition 31 and the second partition 32, that is, the second partition 32 surrounds the first partition 31, and the first partition 31 is not required to be the central portion of the middle core 3.

The shape of the first partition 31 may be a rectangle with rounded corners (see fig. 3), or a circle, or a triangle, or other polygons, or an irregular shape (see fig. 7).

Of course, in other embodiments, the first partition 31 may also include at least two sub-partitions 311. Referring to fig. 5, the first partition 31 includes two sub-partitions 311. Referring to fig. 6, the first partition 31 includes four sub-partitions 311. Of course, in other embodiments, the sub-partition 311 may have other numbers. The sub-partitions 311 may be the same size or different sizes.

Referring to fig. 5 and 6, the sub-partitions 311 are arranged at intervals, and the periphery of each sub-partition 311 is surrounded by the second partition 32.

Referring to fig. 8, the sub-partitions 311 are connected, wherein the sub-partitions 311 located inside are surrounded by the sub-partitions 311 located outside. The inner sub-partition 311 and the outer sub-partition 311 may be made of different materials. In some embodiments, the material of the inner sub-partition 311, the outer sub-partition 311, and the second partition 32 are different. In some embodiments, the inner sub-partition 311 is of the same material as the second partition 32, but of a different material than the outer sub-partition 311.

In some embodiments of the present invention, the intermediate core 3 is made of at least one material selected from a foam material, a hollow bead-filled resin material, a honeycomb material, a corrugated plate, a resin sheet, a composite material, and a metal. The first surface layer substrate 1 is made of at least one material selected from a carbon fiber reinforced composite material, a glass fiber reinforced composite material, a basalt fiber reinforced composite material, a Kevlar fiber reinforced composite material and a metal sheet. The second surface layer substrate 2 is made of at least one material selected from a carbon fiber reinforced composite material, a glass fiber reinforced composite material, a basalt fiber reinforced composite material, a Kevlar fiber reinforced composite material and a metal sheet.

Preferably, the first partition 31 is made of Polymethacrylimide (PMI) foam. The second partition 32 is made of a hollow bead-filled resin. Specifically, the hollow bead-filled resin is a hollow glass bead-filled epoxy resin or a polycarbonate resin (PC resin). With this arrangement, the first partition 31 can be made of an ultra lightweight core material, and the second partition 32 can be made of a high bonding strength core material.

Compare in prior art middle core 3's material evenly distributed's composite board, the utility model discloses a partition design can carry out the lectotype to the material to the different requirements of each subregion, has improved the flexibility of design, can further alleviate composite board 100's weight and reduce material cost. In addition, by adopting the partition design, the material and the thickness of each region can be respectively designed, and the difference design of each part of the composite board 100 is realized. Through the functional partition design of each part of the middle core material 3, the composite board 100 can be used by combining multiple materials, and the different characteristics of different materials are fully exerted, so that the ultra-light weight of the composite board 100 is realized.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the skilled personnel in the art should understand that the technical personnel in the technical field can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A composite board (100) comprising a first skin substrate (1), a second skin substrate (2) and an intermediate core (3) located between the first skin substrate (1) and the second skin substrate (2), characterized in that: the central core (3) has different sections.

2. The composite panel (100) of claim 1, wherein: the different partitions include a first partition (31) and a second partition (32), wherein the first partition (31) and the second partition (32) differ in at least one of material, porosity, thickness, hardness, density, flexural modulus, heat distortion temperature.

3. The composite panel (100) of claim 2, wherein: the first section (31) is an intermediate portion, and the second section (32) is a surrounding portion surrounding the intermediate portion.

4. The composite panel (100) according to claim 3, wherein: the first partition (31) comprises at least two sub-partitions (311).

5. The composite panel (100) according to claim 4, wherein: the at least two sub-partitions (311) are arranged at intervals, and the periphery of each sub-partition (311) is surrounded by the second partition (32); or

The at least two sub-partitions (311) are connected.

6. The composite panel (100) of claim 2, wherein: the first section (31) is made of Polymethacrylimide (PMI) foam.

7. The composite panel (100) of claim 2, wherein: the second partition (32) is made of a hollow bead-filled resin.

8. The composite panel (100) according to claim 7, wherein: the hollow microsphere filling resin is hollow glass microsphere filling epoxy resin or polycarbonate resin.

9. The composite panel (100) of claim 1, wherein: the middle core material (3) is made of at least one material of foam materials, hollow microsphere filling resin materials, honeycomb materials, corrugated plates, resin sheets, composite materials and metals.

10. The composite panel (100) of claim 1, wherein: the first surface layer substrate (1) is made of at least one material of a carbon fiber reinforced composite material, a glass fiber reinforced composite material, a basalt fiber reinforced composite material, a Kevlar fiber reinforced composite material and a metal sheet; the second surface layer substrate (2) is made of at least one material of carbon fiber reinforced composite materials, glass fiber reinforced composite materials, basalt fiber reinforced composite materials, Kevlar fiber reinforced composite materials and metal sheets.