WO2018001134A1 - 壳体加工方法、壳体和电子装置 - Google Patents

壳体加工方法、壳体和电子装置 Download PDF

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Publication number
WO2018001134A1
WO2018001134A1 PCT/CN2017/089030 CN2017089030W WO2018001134A1 WO 2018001134 A1 WO2018001134 A1 WO 2018001134A1 CN 2017089030 W CN2017089030 W CN 2017089030W WO 2018001134 A1 WO2018001134 A1 WO 2018001134A1
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Prior art keywords
housing
metal
casing
opening
functional
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PCT/CN2017/089030
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English (en)
French (fr)
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许海平
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广东欧珀移动通信有限公司
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Publication of WO2018001134A1 publication Critical patent/WO2018001134A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/04—Metal casings

Definitions

  • the present invention relates to the field of electronic device housings, and more particularly to a housing processing method, a housing, and an electronic device.
  • the electronic device generally uses a metal material as a housing, including a back panel and a side frame, and the electronic device needs to be provided with various buttons on the side frame.
  • the Chinese patent document discloses a metal electronic device housing including a middle frame for mounting electronic components such as a main board and a casing, the middle frame and the casing being an integral structure, which is made of a metal material, A through hole or a card slot for fixing electronic components of the electronic device is disposed on the middle frame and/or the housing, and the middle frame is provided with an antenna breakage for avoiding a complete loop of the metal middle frame.
  • the metal casing can usually be formed by CNC forming or sheet metal forming.
  • the CNC forming structure has high strength and good quality, but the processing is relatively complicated, resulting in long production cycle and high production cost. Therefore, the production of existing products is more inclined to cost. Low-cost, fast-growing sheet metal forming.
  • An object of the present invention is to provide a method for processing a casing which can avoid multiple positioning during the process of opening the side of the press-formed casing, resulting in a technical problem that the side opening position is difficult to process accurately.
  • Another object of the present invention is to provide a housing which is low in production cost, high in efficiency, and high in positional accuracy of side opening.
  • Still another object of the present invention is to provide an electronic device which is low in production cost, high in efficiency, and high in positional accuracy of side opening.
  • a housing processing method for molding a housing, the housing having a back panel and a side frame ringing around a periphery of the back panel, and a plurality of functional openings are disposed on the side frame Providing a metal plate having a plurality of said functional openings at a periphery, the metal plate is stamped to form the casing, and the functional opening is located on the side frame formed by folding the metal plate.
  • a housing is provided that is machined using the housing processing method described above.
  • an electronic device including the above housing is provided.
  • FIG. 1 is a schematic perspective view showing the three-dimensional structure of a metal plate after punching a functional hole according to an embodiment.
  • FIG. 2 is a schematic perspective view of the housing of the embodiment.
  • Figure 3 is a partial cross-sectional view showing the housing of still another embodiment.
  • FIG. 4 is a flow chart of a metal shell processing method according to an embodiment.
  • Figure 5 is a flow chart of the first surface treatment described in the embodiment.
  • Figure 6 is a flow chart of the second surface treatment described in the embodiment.
  • a housing processing method for molding a housing having a back panel and a side frame ringing around a peripheral portion of the back panel, and a plurality of functional openings are provided on the side frame to provide a peripheral portion
  • a metal sheet having a plurality of said functional openings is stamped and formed into a stamping manner, and the functional opening is located on the side frame formed by folding the metal sheet.
  • sheet metal stamping is usually formed by stamping and forming the overall shape of the casing, and then processing various side openings provided on the side frame.
  • an electronic device with an integrated metal casing is used, and the side openings are all passed through the CNC.
  • Machining, side hole CNC machining has some shortcomings: it needs to be machined upright, and the surrounding hole machining needs to rotate different faces to process; the positioning is prone to deviation; because the aperture is small, the CNC needs small knife processing, which is time consuming.
  • the side opening of the casing is performed before the shell is stamped and formed, which can avoid multiple positioning during the side hole drilling process of the stamped molding shell, and the technical problem that the side opening position is difficult to process accurately. .
  • the casing processed by the method has low production cost, high production efficiency, and high precision of the side opening position.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a casing processing method is used for molding a casing, the casing having a back panel 2 and a ring disposed on the back panel 2 a side frame 3 of the circumference, on which the side frame 3 is disposed a plurality of functional openings 4, comprising: first stamping to form a metal sheet 1 having a plurality of said functional openings 4 at the periphery, and then performing a second stamping to form the sheet metal 1 to turn toward the first surface of the sheet Folded metal housing.
  • the structure and the number of the functional openings 4 are also different according to the type and model of the processed casing product.
  • all of the through holes provided in the inside of the metal sheet 1 are referred to as the function opening 4
  • the periphery is surrounded by the metal sheet 1), however, in other embodiments, the functional opening 4 may be provided in any number of notches at the edge of the metal sheet 1 depending on the specific use requirements. It may also be a combination of a notch provided at the edge of the metal sheet 1 and a through hole provided inside the metal sheet 1.
  • the function opening 4 includes a power key hole, a volume key hole, a SIM card hole, a USB hole, and a headphone hole.
  • the type of the functional opening 4 and its function are not limited to the case described in this embodiment, and any functional opening 4 that is opened on the casing by a person skilled in the art to realize different functions belongs to the protection scope of the present solution.
  • the outer shape of the metal sheet 1 is separately formed from the functional opening 4, specifically, the outer contour of the metal sheet 1 is stamped to form the outer contour and then stamped to form the function. Opening 4.
  • the functional opening 4 may be stamped to form the outline of the sheet metal 1 and then stamped.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a housing processing method is used for molding a housing, the housing having a back panel 2 and a ring disposed on a periphery of the back panel 2 a side frame 3 on the side frame 3 is provided with a plurality of functional openings 4, which are first stamped to form a metal sheet 1 having a plurality of said functional openings 4 at the periphery, and then a second stamping is used to form the sheet metal 1 a metal shell that is folded over the first surface of the sheet.
  • a plurality of the functional openings 4 are all notches provided at the edge of the metal sheet 1.
  • the functional opening 4 includes a power keyhole, a volume keyhole, a SIM card hole, a USB hole, and a headphone hole.
  • the functional opening 4 in the embodiment is a countersunk opening, and includes a first opening portion and a second opening portion that communicate with each other, and the size of the first opening portion is larger than the second opening portion. The size of the opening.
  • the outline of the metal sheet 1 is formed by the same punching as the functional opening 4.
  • the outline of the metal sheet 1 and the functional opening 4 are formed by the same stamping, so that the positional accuracy of the functional opening 4 can be more effectively ensured, and the position on the metal sheet 1 is more precise, which can improve the mounting performance of the key.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • a housing processing method is used for molding a housing, the housing having a back panel 2 and a side frame ringing on a peripheral portion of the back panel 2 3, a plurality of functional openings are arranged on the side frame 3 4.
  • the first metal sheet 1 having a plurality of said functional openings 4 is formed by stamping for the first time, and then the metal sheet 1 is formed by a second stamping to form a metal shell whose circumference is folded toward the first surface of the sheet.
  • This embodiment is basically the same as the casing processing method of the above embodiment, and the main difference is that the embodiment further includes performing the first finishing process on the metal sheet 1, and the first finishing processing is in the pair.
  • the metal sheet 1 is subjected to stamping to form an integral metal case in which the peripheral portion is folded toward the first surface of the sheet material.
  • the first finishing process includes:
  • First surface treatment T-treating the surface of the metal sheet 1 having a plurality of openings, and etching the nano-holes on the first surface of the sheet with an acid solution to form a porous structure;
  • Sand blasting the above polished surface is sandblasted to make the polished surface have a graininess and form a certain roughness.
  • the method for processing a casing according to the embodiment further includes: performing in-mold injection molding on the stamped metal shell, and forming an internal member in the interior of the metal shell, The functional opening 4 is filled with a filling block during the injection molding process.
  • the back panel 2 of the casing may be formed in a rectangular plate-like structure, and the side frame 3 may be formed in a rectangular frame structure.
  • the "rectangular” and “cuboid” as used in the present application should be understood in a broad sense, that is, a rectangular or rectangular parallelepiped in a strict sense is not required.
  • the shape of the back panel 2 shown in FIG. 2 can be understood as a rectangular shape
  • the side frame 3 shown in FIG. 2 can be understood as a rectangular parallelepiped shape.
  • a smooth transition between adjacent two side edges of the back panel 2 is achieved.
  • the adjacent two sides of the back panel 2 can be smoothly transitioned by a circular arc.
  • the line of the casing can be made smooth, the appearance is beautiful, and the use feeling of the casing is improved.
  • a smooth transition between adjacent two side walls of the side frame 3 is achieved.
  • the adjacent two side walls of the side frame 3 can smoothly transition through a circular arc.
  • the lines of the casing can be made smoother and the appearance is more beautiful.
  • At least one functional opening 4 is provided on each side wall of the side frame 3.
  • Two function openings 4. Thereby, the distribution of the functional openings 4 can be made substantially uniform, the overall structural strength of the casing can be improved, and the appearance of the casing can be further improved.
  • the cross section of the at least one functional opening 4 is formed in a circular shape. Further, the cross section of the at least one functional opening 4 is formed in an oblong shape.
  • the structure is simple and the processing is convenient.
  • a smooth transition between the side frame 3 and the back panel 2 is achieved. Thereby, the appearance and the feeling of use of the casing can be further improved.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Punching Or Piercing (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

一种壳体加工方法，用于成型壳体，壳体具有一背面板(2)以及环设在背面板(2)周部的侧边框(3)，在侧边框(3)上设置有若干功能开口(4)，提供周部具有若干功能开口(4)的金属板材(1)，采用冲压成型的方式将金属板材(1)冲压形成壳体，功能开口(4)位于金属板材(1)翻折形成的侧边框(3)上。

Description

壳体加工方法、壳体和电子装置 技术领域
本发明涉及电子装置壳体技术领域，尤其涉及壳体加工方法、壳体和电子装置。
背景技术
随着电子装置产品外形设计越来越薄，屏幕尺寸越来越大，对电子装置壳体的强度要求越来越高，金属壳体越来越多的应用到电子装置中，采用金属壳体的电子装置，通常将金属材料作为壳体，包括背面板以及侧部的边框，而电子装置在侧边框上需要设置各种按键。
例如中国专利文献公开一种金属电子装置壳体，包括用于安装主板等电子元件的中框以及壳体，所述中框与所述壳体为一体式结构，采用金属材料制成，所述中框和/或所述壳体上设置有用于固定电子装置电子元件的通孔或卡槽，所述中框上设置有避免金属中框形成完整回路的天线断缝。
金属材质的壳体通常可以采用CNC加工成型或板材冲压成型，CNC加工成型结构强度大、质量好，但是加工相对复杂，导致生产周期长、生产成本高，因此现有产品生产中更加倾向于成本低廉、生产速度快的板材冲压成型。
发明内容
本发明的一个目的在于：提供一种壳体加工方法，其能够避免冲压成型壳体侧面开孔加工过程中的多次定位，导致侧面开孔位置难以加工准确的技术问题。
本发明的另一个目的在于：提供一种壳体，其生产成本低、效率高、侧面开孔位置精度高。
本发明的再一个目的在于：提供一种电子装置，其生产成本低、效率高、侧面开孔位置精度高。
为达此目的，本发明采用以下技术方案：
一方面，提供一种壳体加工方法，用于成型壳体，所述壳体具有一背面板以及环设在所述背面板周部的侧边框，在所述侧边框上设置有若干功能开口，提供周部具有若干所述功能开口的金属板材，采用冲压成型的方式将所述金属板材冲压形成所述壳体，所述功能开口位于所述金属板材翻折形成的所述侧边框上。
另一方面，提供一种壳体，采用如上所述的壳体加工方法加工而成。
再一方面，提供一种包括上述壳体的电子装置。
附图说明
下面根据附图和实施例对本发明作进一步详细说明。
图1为实施例所述冲压功能孔后的金属板材立体结构示意图。
图2为实施例所述壳体立体结构示意图。
图3为又一实施例所述壳体局部剖视示意图。
图4为实施例所述金属壳体加工方法流程图。
图5为实施例所述第一次表面处理流程图。
图6为实施例所述第二次表面处理流程图。
图中：
1、金属板材；2、背面板；3、侧边框；4、功能开口。
具体实施方式
一种壳体加工方法，用于成型壳体，所述壳体具有一背面板以及环设在所述背面板周部的侧边框，在所述侧边框上设置有若干功能开口，提供周部具有若干所述功能开口的金属板材，采用冲压成型的方式将所述金属板材冲压形成所述壳体，所述功能开口位于所述金属板材翻折形成的所述侧边框上。
相关技术中采用板材冲压成型通常会先冲压成型壳体整体形状，之后再加工设置在侧边框上的各种侧面开孔，目前采用一体式金属壳体的电子装置，侧面开孔都是通过CNC加工的，侧孔CNC加工存在一些缺点：需要立起来加工，四周孔加工需要旋转不同面来加工；定位容易出现偏差；因为孔径都较小，CNC需要小刀加工，比较耗时。而本申请中的加工方法，壳体侧面开孔在壳体冲压成型前进行，其能够避免冲压成型壳体侧面开孔加工过程中的多次定位，导致侧面开孔位置难以加工准确的技术问题。采用该方法加工的壳体，生产成本低、生产效率高、侧面开孔位置精度高。
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
实施例一：
如图1、2所示，于本实施例中，本发明所述的一种壳体加工方法，用于成型壳体，所述壳体具有一背面板2以及环设在所述背面板2周部的侧边框3，在所述侧边框3上设置有 若干功能开口4，其包括：第一次冲压形成周部具有若干所述功能开口4的金属板材1，之后进行第二次冲压将所述金属板材1制成周部向板材第一表面方向翻折的金属壳体。
根据所加工壳体产品的种类以及型号的不同，所述功能开口4的结构以及数量也有所不同，在本实施例中全部为设置在所述金属板材1内部的通孔(指功能开口4的周围均被金属板材1包围)，然而在其它实施例中，根据具体使用需求的不同，所述功能开口4还可以任意数量设置在所述金属板材1边缘位置的缺口。还可以为设置在所述金属板材1边缘位置的缺口与设置在所述金属板材1内部的通孔的组合。
具体地，所述功能开口4包括电源键孔、音量键孔、SIM卡孔、USB孔、耳机孔。然而，功能开口4的种类及其作用并不局限于本实施例所述情况，任何本领域技术人员为了实现不同功能而在壳体上开设的功能开口4均属于本方案的保护范围。
在本实施例所述的壳体加工方法中，所述金属板材1的外形轮廓与所述功能开口4分别加工形成，具体为先冲压形成所述金属板材1的外形轮廓再冲压形成所述功能开口4。
在其它实施例中还可以先冲压形成所述功能开口4再冲压形成所述金属板材1的外形轮廓。
实施例二：
如图1、2、3所示，于本实施例中，一种壳体加工方法，用于成型壳体，所述壳体具有一背面板2以及环设在所述背面板2周部的侧边框3，在所述侧边框3上设置有若干功能开口4，第一次冲压形成周部具有若干所述功能开口4的金属板材1，之后第二次冲压将所述金属板材1制成周部向板材第一表面方向翻折的金属壳体。
若干所述功能开口4全部为设置在所述金属板材1边缘位置的缺口，所述功能开口4包括电源键孔、音量键孔、SIM卡孔、USB孔、耳机孔。
作为一种优选的技术方案，本实施例中所述功能开口4为沉头开口，其包括相互连通的第一开口部及第二开口部，所述第一开口部的尺寸大于所述第二开口部的尺寸。
所述金属板材1的外形轮廓与所述功能开口4通过同一次冲压形成。金属板材1的外形轮廓与功能开口4通过同一次冲压形成，可以更加有效的保证功能开口4的位置精度，其在金属板材1上的位置更加精确能够提高按键的安装性能。
实施例三：
如图1～6所示，于本实施例中，一种壳体加工方法，用于成型壳体，所述壳体具有一背面板2以及环设在所述背面板2周部的侧边框3，在所述侧边框3上设置有若干功能开口 4，第一次冲压形成周部具有若干所述功能开口4的金属板材1，之后第二次冲压将所述金属板材1制成周部向板材第一表面方向翻折的金属壳体。
本实施例与上述实施例是的壳体加工方法基本相同，其主要区别在于本实施例中还包括对所述金属板材1进行第一次精加工处理，所述第一次精加工处理在对所述金属板材1进行冲压，形成周部向板材第一表面方向翻折的一体式金属壳体之前进行。
具体的，所述第一精加工处理包括：
第一次表面处理：对具有若干开口的所述金属板材1的表面进行T处理，采用酸液于板材第一表面侵蚀纳米孔洞，形成多孔结构；
精加工外形：通过CNC加工，精修金属板材1的外形轮廓以及功能开口4；
第二次表面处理：
抛光，对金属板材1与所述第一表面相对的第二表面进行打磨抛光；
喷砂，对上述抛光表面进行喷砂处理，使抛光表面具有颗粒感并形成一定的粗糙度。
作为一种优选的技术方案，本实施例所述的壳体加工方法，还包括对冲压成型后的金属壳体进行模内注塑，于所述金属壳体的内部形成内部构件，在所述模内注塑过程中采用填充块对所述功能开口4进行填充。
另外，本实施例中还提供一种壳体，其采用如上所述的壳体加工方法加工而成。
参照图2，壳体的背面板2可以形成为长方形的板状结构，侧边框3可以形成为长方形的框体结构。这里，需要说明的是，本申请中所说的“长方形”和“长方体”应作广义理解，即无需严格意义上的长方形或长方体。例如，图2中所示的背面板2形状可以理解为长方形形状，图2中所示的侧边框3可以理解为长方体形状。
具体地，背面板2的相邻两个侧边之间圆滑过渡。例如，背面板2的相邻两个侧边之间可以通过圆弧圆滑过渡。由此，可以使得壳体的线条流畅，外观美观，提升了壳体的使用手感。
可选地，侧边框3的相邻两个侧壁之间圆滑过渡。例如，侧边框3的相邻两个侧壁之间可以通过圆弧圆滑过渡。由此，可以使得壳体的线条更加流畅，外观更加美观。
根据本发明的一些实施例，侧边框3的每个侧壁上设有至少一个功能开口4。例如，在图2的示例中，功能开口4为5个，侧边框3的前侧壁、后侧壁和左侧壁上分别设有一个功能开口4，侧边框3的右侧壁上设有两个功能开口4。由此，可使得功能开口4的分布大体均匀，提高了壳体的整体结构强度，且可以进一步地提升壳体的外观。
具体地，至少一个功能开口4的截面形成为圆形。进一步地，至少一个功能开口4的截面形成为长圆形。结构简单，加工方便。
根据本发明的一些实施例，侧边框3与背面板2之间圆滑过渡。由此，可以进一步地提升壳体的外观和使用手感。
此外，本实施例中还提供一种包括上述壳体的电子装置。于本文的描述中，需要理解的是，术语“第一”、“第二”仅用于在描述上加以区分，不具有特殊含义。
需要声明的是，上述具体实施方式仅仅为本发明的较佳实施例及所运用技术原理，在本发明所公开的技术范围内，任何熟悉本技术领域的技术人员所容易想到的变化或替换，都应涵盖在本发明的保护范围内。

Claims (20)

  1. 一种壳体加工方法，用于成型壳体，所述壳体具有一背面板以及环设在所述背面板周部的侧边框，在所述侧边框上设置有若干功能开口，其特征在于,提供周部具有若干所述功能开口的金属板材，采用冲压成型的方式将所述金属板材冲压形成所述壳体，所述功能开口位于所述金属板材翻折形成的所述侧边框上。
  2. 根据权利要求1所述的壳体加工方法，其特征在于，若干所述功能开口全部为设置在所述金属板材边缘位置的缺口，或全部为设置在所述金属板材内部的通孔，或为任意数量设置在所述金属板材边缘位置的缺口与设置在所述金属板材内部的通孔的组合。
  3. 根据权利要求2所述的壳体加工方法，其特征在于，所述功能开口包括电源键孔、音量键孔、SIM卡孔、USB孔、耳机孔。
  4. 根据权利要求3所述的壳体加工方法，其特征在于，所述功能开口为沉头开口，其包括相互连通的第一开口部及第二开口部，所述第一开口部的尺寸大于所述第二开口部的尺寸。
  5. 根据权利要求1至4中任一项所述的壳体加工方法，其特征在于，所述金属板材的外形轮廓与所述功能开口分别加工形成，可以为先冲压形成所述金属板材的外形轮廓再冲压形成所述功能开口，或先冲压形成所述功能开口再冲压形成所述金属板材的外形轮廓。
  6. 根据权利要求1至4中任一项所述的壳体加工方法，其特征在于，所述金属板材的外形轮廓与所述功能开口通过同一次冲压形成。
  7. 根据权利要求1至6中任一项所述的壳体加工方法，其特征在于，还包括对所述金属板材进行第一次精加工处理，所述第一次精加工处理在对所述金属板材进行冲压，形成周部向板材第一表面方向翻折的一体式金属壳体之前进行。
  8. 根据权利要求7所述的壳体加工方法，其特征在于，所述第一精加工处理包括：
    第一次表面处理：对具有若干开口的所述金属板材的表面进行T处理，采用酸液于板材第一表面侵蚀纳米孔洞，形成多孔结构；
    精加工外形：通过CNC加工，精修金属板材的外形轮廓以及功能开口；
    第二次表面处理：
    抛光，对金属板材与所述第一表面相对的第二表面进行打磨抛光；
    喷砂，对上述抛光表面进行喷砂处理，使抛光表面具有颗粒感并形成一定的粗糙度。
  9. 根据权利要求8所述的壳体加工方法，其特征在于，还包括对冲压成型后的金属壳体进行模内注塑，于所述金属壳体的内部形成内部构件，在所述模内注塑过程中采用填充块 对所述功能开口进行填充。
  10. 一种壳体，其特征在于，采用权利要求1至9中任一项所述的壳体加工方法加工而成。
  11. 根据权利要求10所述的壳体，其特征在于，所述背面板形成为长方形的板状结构，所述侧边框形成为长方形的框体结构。
  12. 根据权利要求11所述的壳体，其特征在于，所述背面板的相邻两个侧边之间圆滑过渡。
  13. 根据权利要求12所述的壳体，其特征在于，所述背面板的相邻两个侧边之间通过圆弧圆滑过渡。
  14. 根据权利要求11至13中任一项所述的壳体，其特征在于，所述侧边框的相邻两个侧壁之间圆滑过渡。
  15. 根据权利要求14所述的壳体，其特征在于，所述侧边框的相邻两个侧壁之间通过圆弧圆滑过渡。
  16. 根据权利要求11所述的壳体，其特征在于，所述侧边框的每个侧壁上设有至少一个所述功能开口。
  17. 根据权利要求10至16中任一项所述的壳体，其特征在于，所述侧边框与所述背面板之间圆滑过渡。
  18. 根据权利要求10至17中任一项所述的壳体，其特征在于，至少一个所述功能开口的截面形成为圆形。
  19. 根据权利要求10至18中任一项所述的壳体，其特征在于，至少一个所述功能开口的截面形成为长圆形。
  20. 一种电子装置，其特征在于，包括根据权利要求10至19中任一项所述的壳体。
PCT/CN2017/089030 2016-06-27 2017-06-19 壳体加工方法、壳体和电子装置 WO2018001134A1 (zh)

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