TWI451831B - Composite reinforced shell - Google Patents

Description

Composite reinforced shell

The present invention relates to an outer casing, and more particularly to a composite reinforced outer casing.

Referring to Fig. 1, the conventional keyboard 1 includes an upper cover 11 formed with a plurality of hollow portions 111, a lower cover 12 cooperating with the upper cover 11, and a plurality of buttons 13 projecting from each of the hollow portions 111.

With the increase of the production and the advancement of the manufacturing technology, in recent years, more and more keyboards 1 have replaced the less strong plastic with a higher strength aluminum-magnesium alloy to reduce the thickness of the upper cover 11 and the lower cover 12, and thus Effectively reduce the overall weight while highlighting the user's taste.

However, in recent years, the prices of raw materials have continued to soar, and the cost of aluminum-magnesium alloys has become higher and higher. Therefore, related companies have replaced fiber-reinforced materials with plastics to reduce the cost of raw materials.

However, the keyboard 1 made of fiber reinforced material has the following disadvantages:

1. Poor strength: Since the strength of the fiber-reinforced material is not as good as that of the aluminum-magnesium alloy, the keyboard 1 made of the fiber-reinforced material at the same thickness is inferior in strength, in particular, the upper cover 11 in which the plurality of hollow portions 111 are formed.

2. Complicated production: In order to improve the above-mentioned strength, it is of course possible to increase the thickness of the upper cover 11, but if the overall thickness of the upper cover 11 is increased, the weight will be greatly increased, and of course, the excess thickness can be removed by cutting. In order to avoid a large increase in weight, this will not only make the production process more cumbersome and inconvenient, but also cause material waste. However, if only the thickness at the hollow portion 111 is increased, the number of hot-press laminates of the fiber-reinforced material at the hollow portion 111 must be particularly changed, which makes the production more inconvenient.

Accordingly, it is an object of the present invention to provide a composite reinforced outer casing which is excellent in strength and which is simple and quick to manufacture and which can effectively reduce material waste.

Thus, the composite reinforced outer casing of the present invention comprises a matching surface layer and a reinforcing layer. The skin layer includes a fiber reinforced body and a plurality of perforations extending through the fiber reinforced body. The reinforcing layer includes a metal member disposed on the fiber reinforced body, and a plurality of through holes formed in the metal member corresponding to the through holes.

The invention has the beneficial effects that the metal member provided on the fiber reinforced body can not only improve the strength of the fiber reinforced body, but also does not need to change the number of hot press lamination and subsequent cutting processing, so that the production process is simpler and faster, and At the same time reduce the waste of materials.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to Figure 2, a preferred embodiment of the composite reinforced outer casing 2 of the present invention comprises a mating surface layer 21 and a reinforcing layer 22. The skin layer 21 includes a fiber reinforced body 211 made of a hot-press laminated carbon fiber prepreg, and a plurality of perforations 215 extending through the fiber reinforced body 211. In the embodiment, the composite reinforced casing 2 is illustrated by a keyboard casing, and the actual application is not limited thereto.

The fiber reinforced body 211 has a hollow portion 212 formed with the through hole 215, a body portion 213 located at the periphery of the hollow portion 212, and a surrounding portion 214 surrounding the periphery of the body portion 213. The hollow portion 212, the body portion 213 and the surrounding portion 214 have the same thickness. In the preferred embodiment, the hollow portion 212, the body portion 213, and the surrounding portion 214 have a thickness of 0.8 mm.

Since the thickness of the hollow portion 212, the main body portion 213 and the surrounding portion 214 are the same, the fiber reinforced body 211 can be formed only by laminating hot pressing at one time, without specifically changing the number of layers of the carbon fiber prepreg, or Subsequent cutting operations make it easier and faster to reduce material waste.

Referring to FIGS. 2 and 3, the reinforcing layer 22 includes a metal member 221 made of an aluminum alloy and disposed corresponding to the hollow portion 212, and a plurality of through holes 222 formed on the metal member 221 corresponding to the through holes 215. Forming a bonding mechanism 223 (shown in FIG. 3) on the side of the metal member 221 opposite to the hollow portion 212, and a gap between the fiber reinforced body 211 and the metal member 221 to bond the fiber reinforced body 211 with Adhesive 224 of the metal member 221 (shown in Figure 3).

In the preferred embodiment, the metal member 221 is an aluminum alloy metal plate having a thickness of 1.4 mm, and the bonding mechanism 223 is formed on the side of the metal member 221 opposite to the hollow portion 212 for bonding other Such as: a circuit board: a screw hole of a component (not shown), and the adhesive 224 is a pressure sensitive adhesive previously placed on the metal member 221.

The use of the metal member 221 disposed corresponding to the hollow portion 212 not only enhances the strength of the hollow portion 212 of the fiber-reinforced body 211, but also eliminates the need for changing the number of hot-press laminates and subsequent cutting, thereby making the production process more Simple and fast, while reducing material waste.

Moreover, the bonding mechanism 223 is formed on the metal member 221, which is not only simpler than molding on the fiber reinforced body 211, but also can effectively prevent the bonding mechanism 223 from being directly formed on the relatively hard and brittle fiber reinforced body. The risk of chipping on 211 effectively avoids the generation of waste and improves product stability.

The bonding of the fiber reinforced body 211 and the metal member 221 by the adhesive 224 not only improves the speed of bonding the fiber reinforced body 211 and the metal member 221, but also shortens the required working time and avoids the use of the lock or the card. There is a risk that the fiber-reinforced body 211 will be chipped.

In summary, the composite reinforced outer casing 2 of the present invention utilizes the metal member 221 disposed on the fiber reinforced body 211 to not only increase the strength of the fiber reinforced body 211, but also eliminate the need to change the number of hot laminates and subsequent cutting operations. The production of the present invention can be achieved by making the production easier and faster, and at the same time reducing the waste of materials.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Composite reinforced shell

twenty one. . . surface layer

211. . . Fiber reinforced body

212. . . Hollowing

213. . . Body part

214. . . Surrounding

215. . . perforation

twenty two. . . Strengthening layer

221. . . metallic parts

222. . . Through hole

223. . . Combined mechanism

224. . . Adhesive

Figure 1 is a schematic view showing the appearance of an existing keyboard;

Figure 2 is an exploded perspective view of a preferred embodiment of the composite reinforced outer casing of the present invention;

Figure 3 is a cross-sectional view of the accompanying view of Figure 2.

2. . . Composite reinforced shell

twenty one. . . surface layer

211. . . Fiber reinforced body

213. . . Body part

214. . . Surrounding

215. . . perforation

twenty two. . . Strengthening layer

221. . . metallic parts

222. . . Through hole

223. . . Combined mechanism

224. . . Adhesive

Claims (6)

A composite reinforced outer casing comprising: a skin layer comprising a fiber reinforced body and a plurality of perforations extending through the fiber reinforced body; and a reinforcing layer comprising a metal member disposed on the fiber reinforced body, at least one formed on the metal member Conversely, a bonding mechanism on one side of the fiber reinforced body, and a plurality of through holes formed on the metal member corresponding to the through holes, wherein the bonding mechanism is a screw hole. The composite reinforced outer casing according to claim 1, wherein the reinforcing layer further comprises an adhesive between the fiber reinforced body and the metal member to bond the fiber reinforced body and the metal member. The composite reinforced outer casing according to claim 2, wherein the fiber reinforced body is distinguishable into a hollow portion formed with the through hole, and a body portion located at a periphery of the hollow portion, the metal member being correspondingly disposed The hollowing out. The composite reinforced outer casing according to claim 3, wherein the fiber reinforced body further comprises a surrounding portion surrounding the circumference of the body portion, and the hollow portion, the body portion and the surrounding portion have the same thickness. The composite reinforced outer casing according to claim 1, wherein the fiber reinforced body is made of a carbon fiber prepreg, and the metal piece is a metal plate made of an aluminum alloy. The composite reinforced outer casing according to claim 2, wherein the adhesive is a pressure sensitive adhesive.