201010569 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種殼體及其製作方法。 【先前技術】 習知可攜式電子產品之金屬外殼上通常會喷塗一裝飾 性塗層或保護性塗層來提高產品之裝飾性能或使用性能。在 金屬外殼上形成塗層之方法通常有液體塗料喷塗或固體粉 末塗料喷塗。固體粉末喷塗由於具有較高之塗料回收利用 ® 率、喷塗過程中環保等優點而被廣泛應用。目前在金屬外殼 之粉末塗層上製作產品之商標或標誌性圖案時，通常係採取 印刷油墨之方式。該印刷形成之商標或標誌性圖案通常厚度 較薄，沒有立體感，且其與粉末塗層之結合力較低，在使用 過程中容易被磨損，從而影響產品之外觀。 【發明内容】 鑒於此，有必要提供一種殼體，該殼體之表面具有立體 Φ 感較強之圖案，且殼體在使用過程中其圖案不易被磨損。 另外，還有必要提供一種上述殼體之製作方法。 一種殼體，其包括一基體、一形成於該基體上之粉體塗 層及形成於該粉體塗層中之圖案層，所述塗層上形成有凹 槽，該圖案層為填充於該凹槽中之溶膠體。 一種殼體之製作方法，其包括如下步驟： 提供一基體； 在該基體之表面喷塗一1粉體塗層； 在該粉體塗層上蝕刻出凹槽； 201010569 在該凹槽處填充溶膠體。 本發明殼體藉由先在其粉體塗層上形成凹槽，再於該凹 槽中填充溶膠體形成圖案，從而形成殼體之商標或標誌性圖 案。所述圖案可具有較強之立體感，在使用過程中不易被磨 損。本發明殼體之製作方法採用蝕刻之方式在粉體塗層上蝕 刻出凹槽，其對該凹槽紋路之修改可更快速，更高效。 【實施方式】 本發明較佳實施方式之殼體10如圖1所示，其包括一 ® 基體11、一形成於該基體11上之粉體塗層13及形成於該粉 體塗層13中之圖案層15。 基體Π為一金屬基體，製作該基體11之材料可為鋁或 銘合金、鎂或鎂合金、鈦或鈦合金等。 粉體塗層13為以靜電粉末喷塗之方式喷塗於所述基體 11之一表面上形成。形成粉體塗層13之塗料可為聚氨酯樹 脂粉末.或環氧樹脂粉末。所述粉體塗層13之厚度在60〜 φ 90μηι之間。粉體塗層13上形成有凹槽，該凹槽可由鐳射蝕 刻之方式形成。所述凹槽之紋路被設置成產品之商標或其他 裝飾性圖案，該凹槽之深度可與所述粉體塗層13之厚度相 當。 圖案層15為溶膠體填充於粉體塗層13之凹槽中形成。 該填充之溶膠體中包含有丙烯酸樹脂、流平劑、固化劑及有 機溶劑，該有機溶劑可為苯、曱苯或二曱苯。所述溶膠體中 還可根據產品顏色之需要添加相應之顏料。該填充之溶膠體 具有較好之流平性能，其能均勻地填充於所述凹槽中。填充 201010569 後對所述殼體ίο進行加熱，使填充於凹槽中之溶膠體固化。 所述溶膠體固化後即形成圖案15層，而殼體10之表面即形 成具較強立體感之商標或圖案。 本發明較佳實施方式殼體10之製作方法包括如下步驟： 提供一基體11。該基體11可為一金屬基體，製作該基 體11之材料可為銘或is合金、鎮或鎂合金、鈦或鈦合金等。 在該基體11之一表面上喷塗粉體塗層13。該粉體塗層 13可以靜電粉末喷塗之方式喷塗於基體11之表面上。喷塗 • 該粉體塗層13前，還可對所述基體11之表面進行喷砂處 理，以使基體11之表面粗糙並增強粉體塗層13在基體11 表面之附著力。喷塗所述粉體塗層13之塗料可選自為聚氨 酯樹脂粉末或環氧樹脂粉末。粉體塗層13之厚度可在60〜 90μπι之間。 在所述粉體塗層13上蝕刻凹槽。該凹槽可由鐳射蝕刻 之方式形成。提供一鐳射源，使該鐳射源發出鐳射光束按照 _ 設定圖案或商標之路徑投射於粉體塗層13上，在該粉體塗 層13上蝕刻出凹槽。該凹槽之深度可與所述塗層13之厚度 相當。 在所述凹槽處填充溶膠體。該溶膠體為丙烯酸樹脂之溶 膠體，該溶膠體中還可含有流平劑、固化劑及有機溶劑，該 有機溶劑可為苯、甲苯或二甲苯。所述溶膠體中還可根據產 品顏色之需要添加相應之顏料。所述溶膠體可採用注射器注 射之方式進行填充。該填充之溶膠體具有較好之流平性能， 其能均勻地填充於所述凹槽中。填充後對所述殼體10進行 9 201010569 加熱，使所述溶膠體固化，所述加熱之溫度約為200°C。所 述填充於凹槽中之溶膠體固化後即形成圖案15層，而殼體 10之表面即形成具較強立體感之商標或圖案。該填充形成之 圖案層15之表面可與粉體塗層13之外觀表面齊平。 可以理解，所述在粉體塗層13上蝕刻之凹槽之深度亦 可小於該粉體塗層13之厚度。 可以理解，所述填充形成之圖案層15之表面亦可低於 粉體塗層13之外觀表面，使該殼體10在使用過程中其圖案 •層15不易被磨損掉。 本發明較佳實施方式之殼體10藉由先在形成於基體11 之粉體塗層13上蝕刻出凹槽，再於該凹槽中填充具較好流 平性能之溶膠體來形成圖案層15，以製作殼體10之商標或 標誌性圖案。所述圖案層15具有較強之立體感，在使用過 程中不易被磨損。另外，本發明較佳實施方式殼體10之製 作方法採用鐳射蝕刻之方式在粉體塗層13上蝕刻出具預設 @ 商標或圖案紋路之凹槽，對圖案之修改更快速，效率更高。 本發明較佳實施方式之殼體10可以係行動電話、遊戲 機、照相機等電子裝置之殼體，亦可以係蓋體或容器類製品。 【圖式簡單說明】 圖1係本發明較佳實施方式殼體之剖視示意圖。 【主要元件符號說明】 殼體 10 基體 11 粉體塗層 13 圖案層 15201010569 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a housing and a method of fabricating the same. [Prior Art] A metal coating on a portable electronic product is usually coated with a decorative coating or a protective coating to improve the decorative performance or performance of the product. The method of forming a coating on a metal casing is usually a liquid coating or a solid powder coating. Solid powder coating is widely used due to its high coating recycling rate, environmental protection during spraying. In the current production of trademarks or logos on the powder coating of metal casings, printing inks are usually used. The printed trademark or logo pattern is generally thin in thickness, has no three-dimensional effect, and has a low adhesion to the powder coating, which is easily worn during use, thereby affecting the appearance of the product. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a housing having a surface having a strong stereoscopic Φ feeling, and the pattern is not easily worn by the housing during use. In addition, it is also necessary to provide a method of manufacturing the above casing. A casing comprising a base body, a powder coating formed on the base body, and a pattern layer formed in the powder coating layer, wherein the coating layer is formed with a groove, and the pattern layer is filled in the The sol in the groove. A method for manufacturing a casing, comprising the steps of: providing a substrate; spraying a powder coating on the surface of the substrate; etching a groove on the powder coating; 201010569 filling the groove with a sol body. The casing of the present invention forms a pattern or a signature pattern of the casing by first forming a groove in the powder coating layer and filling the groove with a sol body to form a pattern. The pattern may have a strong three-dimensional effect and is not easily worn during use. The manufacturing method of the casing of the present invention etches the groove on the powder coating by etching, and the modification of the groove pattern can be faster and more efficient. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A housing 10 according to a preferred embodiment of the present invention, as shown in FIG. 1, includes a base body 11, a powder coating 13 formed on the base 11, and a powder coating 13 formed therein. Pattern layer 15. The base member is a metal substrate, and the material for forming the substrate 11 may be aluminum or an alloy, magnesium or magnesium alloy, titanium or titanium alloy. The powder coating layer 13 is formed by spraying on the surface of one of the substrates 11 by electrostatic powder coating. The coating forming the powder coating layer 13 may be a polyurethane resin powder or an epoxy resin powder. The thickness of the powder coating layer 13 is between 60 φ φ 90 μηι. The powder coating layer 13 is formed with a groove which can be formed by laser etching. The groove pattern is provided as a trademark or other decorative pattern of the product, the depth of the groove being comparable to the thickness of the powder coating 13. The pattern layer 15 is formed by filling a sol body in a groove of the powder coating layer 13. The filled sol body contains an acrylic resin, a leveling agent, a curing agent, and an organic solvent, and the organic solvent may be benzene, toluene or diphenylbenzene. The corresponding pigment may also be added to the sol according to the color of the product. The filled sol has a good leveling property which can be uniformly filled in the grooves. After filling 201010569, the casing ίο is heated to solidify the sol body filled in the groove. After the sol body is cured, a pattern 15 layer is formed, and the surface of the casing 10 forms a trademark or pattern having a strong three-dimensional feeling. The manufacturing method of the housing 10 of the preferred embodiment of the present invention includes the following steps: A substrate 11 is provided. The substrate 11 may be a metal substrate, and the material of the substrate 11 may be an alloy of the name or is, a town or a magnesium alloy, titanium or a titanium alloy. A powder coating 13 is sprayed on the surface of one of the substrates 11. The powder coating 13 can be sprayed onto the surface of the substrate 11 by electrostatic powder coating. Spraying • Before the powder coating 13, the surface of the substrate 11 may be sandblasted to roughen the surface of the substrate 11 and enhance the adhesion of the powder coating 13 to the surface of the substrate 11. The coating for spraying the powder coating layer 13 may be selected from a polyurethane resin powder or an epoxy resin powder. The thickness of the powder coating 13 may be between 60 and 90 μm. A groove is etched on the powder coating 13. The groove can be formed by laser etching. A laser source is provided to cause the laser source to emit a laser beam onto the powder coating 13 in accordance with a _ set pattern or trademark path, and a groove is etched into the powder coating layer 13. The depth of the groove can be comparable to the thickness of the coating 13. A sol body is filled at the groove. The sol is a solvent of an acrylic resin, and the sol may further contain a leveling agent, a curing agent, and an organic solvent, and the organic solvent may be benzene, toluene or xylene. The corresponding pigment may also be added to the sol body as needed for the color of the product. The sol body can be filled by syringe injection. The filled sol body has better leveling properties and can be uniformly filled in the grooves. After filling, the casing 10 is heated by 9 201010569 to solidify the sol, and the heating temperature is about 200 °C. After the sol body filled in the groove is solidified, a pattern 15 layer is formed, and the surface of the casing 10 forms a trademark or pattern having a strong three-dimensional feeling. The surface of the pattern layer 15 formed by the filling may be flush with the surface of the powder coating layer 13. It will be understood that the depth of the groove etched on the powder coating 13 may also be less than the thickness of the powder coating 13. It can be understood that the surface of the pattern layer 15 formed by the filling may also be lower than the appearance surface of the powder coating layer 13, so that the pattern layer 15 of the casing 10 is not easily worn away during use. The housing 10 of the preferred embodiment of the present invention forms a pattern layer by first etching a groove on the powder coating layer 13 formed on the substrate 11, and filling the groove with a sol body having a good leveling property. 15, to make a trademark or iconic pattern of the casing 10. The pattern layer 15 has a strong three-dimensional effect and is not easily worn during use. In addition, in the preferred embodiment of the present invention, the manufacturing method of the casing 10 is performed by laser etching to etch a groove with a preset @ trademark or pattern grain on the powder coating layer 13, which is faster and more efficient in modifying the pattern. The casing 10 of the preferred embodiment of the present invention may be a housing of an electronic device such as a mobile phone, a game machine, a camera, or the like, or may be a cover or a container-like article. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a casing of a preferred embodiment of the present invention. [Description of main component symbols] Housing 10 Base 11 Powder coating 13 Pattern layer 15