201018349 .九、發明說明： ，【發明所屬之技術領域】 ‘ 本發明係關於一種外殼，尤其係關於一種用於電子裝 置之外殼及其製造方法。 义 【先前技術】 。現今手機等電子裝置之外殼大多由塑膠或金屬兩種材 料單獨製成。單一的金屬外殼，雖然具有較好的機械強度， 但金屬外殼對電磁波有遮罩作用，對於一些具有射頻發射 ❹和接收功能之電子裝置比如手機、可無線上網之電腦來 說，不能滿足其射頻要求。單純的塑膠外殼，雖然能滿足 上述電子裝置之射頻要求，但機械強度不夠，在使用者不 小心摔落時容易破裂。而如果將金屬件與塑膠件各自先成 型後再通過組裝方式組成一外殼，如此雖能滿足機械強度 和射頻兩方面要求，但是增加組裝步驟，且外表即使經過 表面處理亦很難達到一致的外觀效果。 【發明内容】 有鑒於此，有必要提供一種機械強度較好、能滿足射 頻要求，且外觀效果一致的外殼β 另外，還有必要提供一種上述外殼之製造方法。 ρ種外殼，其包括一基體及形成於該基體表面之裝飾 膜，該基體由-金屬件及一塑膠件一體成型，該金屬件及 塑膠件共同形成—該基體之表面，該裝飾膜形成於該基 體之表面上’該裳錦膜包括一直接形成於該基體表面之底 漆層、一形成於該底漆層表面之非導電真空鍍膜層及一形 成於該非導電真空鍍膜層之透明保護漆層。 6 201018349 , 一種外殼之製造方法，其包括如下步驟： / 加工得到一金屬件； ‘注塑一塑膠件與該金層件-體成型-基體，該金屬 與該塑膠件共同形成一該基體之表面； 於所述基體表面形成-襄飾膜，該裝飾膜包括一 形成於該基體表面之底漆層、一形成於該底漆層表面之非 導電真空鑛膜層及-形成於該非導電真空鑛膜層表面之 明保護漆層。 _ 上述外殼之基體由一金屬件與-塑膠件通過嵌件注塑 之方式-體成型，省略了金屬件與塑膠件之組裝過程，同 時=該基體表面塗敷-非導電性裝飾膜，使該外殼既具有 較高機械強度’又能滿足電子裝置之射頻要纟，而且具有 均勻一致的金屬外觀效果。 【實施方式】201018349. Nine, invention description: [Technical field to which the invention pertains] ‘ The present invention relates to an outer casing, and more particularly to an outer casing for an electronic device and a method of manufacturing the same. Righteous [prior art]. Today, electronic devices such as mobile phones are mostly made of plastic or metal. A single metal casing, although it has good mechanical strength, the metal casing has a masking effect on electromagnetic waves. For some electronic devices with radio frequency transmitting and receiving functions, such as mobile phones and wireless Internet computers, the radio frequency cannot be met. Claim. The simple plastic case, although it can meet the RF requirements of the above electronic devices, is not mechanically strong enough to be easily broken when the user accidentally falls. However, if the metal part and the plastic part are respectively formed into a shell, and then assembled into an outer casing, the mechanical strength and the radio frequency can be satisfied, but the assembly step is increased, and the appearance is difficult to achieve a uniform appearance even after surface treatment. effect. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a casing β having a good mechanical strength, meeting the frequency requirements, and having a uniform appearance. In addition, it is also necessary to provide a method of manufacturing the above casing. a casing comprising a base body and a decorative film formed on the surface of the base body, the base body being integrally formed by a metal member and a plastic member, the metal member and the plastic member jointly forming a surface of the base body, the decorative film being formed on the surface The surface of the substrate includes a primer layer directly formed on the surface of the substrate, a non-conductive vacuum coating layer formed on the surface of the primer layer, and a transparent protective paint formed on the non-conductive vacuum coating layer. Floor. 6 201018349, a method for manufacturing a casing, comprising the steps of: / processing a metal piece; 'injecting a plastic piece and the gold layer piece-body forming-base body, the metal and the plastic piece together forming a surface of the base body Forming a enamel film on the surface of the substrate, the decorative film comprising a primer layer formed on the surface of the substrate, a non-conductive vacuum mineral film layer formed on the surface of the primer layer, and formed in the non-conductive vacuum ore The surface of the film is protected by a protective lacquer layer. _ The base of the outer casing is formed by inserting a metal piece and a plastic part by insert molding, omitting the assembly process of the metal part and the plastic part, and at the same time, the surface of the base body is coated with a non-conductive decorative film. The outer casing has both high mechanical strength and meets the RF requirements of electronic devices, and has a uniform metallic appearance. [Embodiment]
，請參閲圖1，本發明較佳實施例外殼1〇，包括基體u 及形成於該基體U表面之裝飾膜13。 、,該基體11由一金屬件112及一塑膠件114 一體成型。 當該外殼10用作手機外殼時，該塑膠件114與設置手機内 部之天線位置相對應，由此不會影響手機之射頻功能。 所述裝飾膜13包括一底漆層131、一非導電真空鍵膜 層133及一保護漆層135。 該底漆層131直接形成於基體^上，其覆著於由該金 屬件Π2及該塑膠件114共同形成之外表面116上。底漆 層131可以有效地提高基體u之表面平滑度，以使後續之 非導電真空鍍膜層133之表面光滑，具有較好之光亮度， 7 201018349 · • •此外’還可以提高後續之非導電真空鍍膜層133之附著力。 :‘ 該非導電真空鍍膜層133形成於該底漆層131表面。 ♦該非導電真空鑛膜層133可以為金屬材料，亦可以為非金 屬材料，只要其具有金屬之外觀效果即可。 該保護漆層135形成於該非導電真空鍍膜層133表 面’其為透明油漆組成。 可以理解，為了使外殼1〇表面進一步具有亮霧同體效 果’可在基體11表面預先形成局部粗糙區域。 參 另外，還可以在非導電真空鍍膜層133上通過鐳射雕 刻之方式形成鏤空圖案，以使該外殼1〇表面獲得圖案裝飾 之效果。 上述外殼10之製造方法包括如下步驟： 首先，通過壓鑄、衝壓或其他方式加工得到金屬件 112。 以嵌件注塑方式注塑形成該塑膠件114與該金屬件 112之一體結構，以獲得該基體n。基體包括一由該金屬 ©件112及該塑膠件114共同形成之外表面us。 最後，於該基體Η之外表面116形成裝飾膜13。具 體做法為先在基體Π表面上塗敷該底漆層131，再於上述 底漆層131表面鍍覆該非導電真空鍍膜層133，最後於該 非導電真空鍍膜層133表面塗敷該保護漆層135。 Λ 可以理解，若使外殼1〇表面進一步具有亮霧同體效 果，可在上述嵌件注塑形成該塑膠件Π4與該金屬件112 之一體結構，即該基體η時，預先於注塑模具内形成粗糙 區，以使成型之塑膠件114上亦具有相應之粗糙區；或者 8 201018349 •、在金屬件112表面银刻出一粗糖區域。 另外，上述外殼之製造方法還可以包括在非導電真空 鍍膜層133上通過鐳射雕刻之方式形成鏤空圖案，以使該 外殼10表面獲得圖案裝飾之效果。Referring to FIG. 1, a preferred embodiment of the present invention includes a substrate u and a decorative film 13 formed on the surface of the substrate U. The base 11 is integrally formed by a metal member 112 and a plastic member 114. When the outer casing 10 is used as a casing of a mobile phone, the plastic member 114 corresponds to the position of the antenna in which the inside of the mobile phone is disposed, thereby not affecting the radio frequency function of the mobile phone. The decorative film 13 includes a primer layer 131, a non-conductive vacuum key film layer 133, and a protective lacquer layer 135. The primer layer 131 is formed directly on the substrate, and is coated on the outer surface 116 formed by the metal member 2 and the plastic member 114. The primer layer 131 can effectively improve the surface smoothness of the substrate u, so that the surface of the subsequent non-conductive vacuum coating layer 133 is smooth, and has better brightness. 7 201018349 · • • In addition, the subsequent non-conductive can be improved. The adhesion of the vacuum coating layer 133. : The non-conductive vacuum coating layer 133 is formed on the surface of the primer layer 131. ♦ The non-conductive vacuum mineral film layer 133 may be a metal material or a non-metal material as long as it has a metallic appearance effect. The protective lacquer layer 135 is formed on the surface of the non-conductive vacuum coating layer 133, which is composed of a transparent paint. It is understood that a partially roughened region may be formed in advance on the surface of the substrate 11 in order to further have a bright fog-like effect on the surface of the outer casing 1 '. Alternatively, a hollow pattern may be formed by laser engraving on the non-conductive vacuum coating layer 133 to obtain the effect of pattern decoration on the surface of the outer casing 1 . The manufacturing method of the above casing 10 includes the following steps: First, the metal member 112 is obtained by die casting, stamping or the like. The plastic member 114 and the metal member 112 are integrally molded by insert molding to obtain the substrate n. The base body includes a surface i formed by the metal member 112 and the plastic member 114. Finally, a decorative film 13 is formed on the outer surface 116 of the substrate. Specifically, the primer layer 131 is first coated on the surface of the substrate, and the non-conductive vacuum coating layer 133 is plated on the surface of the primer layer 131. Finally, the protective lacquer layer 135 is applied on the surface of the non-conductive vacuum coating layer 133. Λ It can be understood that if the outer surface of the outer casing 1 is further provided with a bright fog-like effect, the one-piece structure of the plastic member 4 and the metal member 112, that is, the base body η, can be formed in the injection mold before injection molding. The roughened area is such that the formed plastic part 114 also has a corresponding rough area; or 8 201018349 •, a rough sugar area is engraved on the surface of the metal part 112. In addition, the method of manufacturing the outer casing may further include forming a hollow pattern on the non-conductive vacuum coating layer 133 by laser engraving to obtain the effect of pattern decoration on the surface of the outer casing 10.
上述外殼之基體由一金屬件與一塑膠件通過嵌件注塑 之方式一體成型，省略了金屬件與塑膠件之組裝過程，同 時於該基體表面塗敷一非導電性裝飾膜，使該外殼既具有 較高機械強度，又能滿足電子裝置之射頻要求，而且^有 ❿均勻一致的金屬外觀效果。 A 【圖式簡單說明】 圖1為本發明較佳實施例外殼之剖面示意圖。 【主要元件符號說明】 10 基體 11 112 塑膠件 114 116 裝飾膜 13 131 非導電真空 133 135 外殼 金屬件 外表面 底漆層 保護漆層The base body of the outer casing is integrally formed by inserting a metal piece and a plastic piece by insert molding, omitting the assembly process of the metal piece and the plastic part, and coating a non-conductive decorative film on the surface of the base body, so that the outer casing is It has high mechanical strength, can meet the radio frequency requirements of electronic devices, and has a uniform metallic appearance. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a casing of a preferred embodiment of the present invention. [Main component symbol description] 10 Base 11 112 Plastic parts 114 116 Decorative film 13 131 Non-conductive vacuum 133 135 Housing Metal parts Exterior surface Primer layer Protective paint layer