WO2011076118A1 - 一种手机内置天线 - Google Patents

一种手机内置天线 Download PDF

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Publication number
WO2011076118A1
WO2011076118A1 PCT/CN2010/080100 CN2010080100W WO2011076118A1 WO 2011076118 A1 WO2011076118 A1 WO 2011076118A1 CN 2010080100 W CN2010080100 W CN 2010080100W WO 2011076118 A1 WO2011076118 A1 WO 2011076118A1
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Prior art keywords
layer
antenna
mobile telephone
built
paint
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PCT/CN2010/080100
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English (en)
French (fr)
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余章军
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Yu Zhangjun
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Publication of WO2011076118A1 publication Critical patent/WO2011076118A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0284—Details of three-dimensional rigid printed circuit boards

Definitions

  • the invention relates to a built-in antenna for a mobile phone, in particular to a plurality of built-in antennas having a layered structure on the surface of an injection molded antenna base or the back of a mobile phone case.
  • the traditional built-in antenna manufacturing method is made of beryllium copper, brass, white copper, stainless steel and other materials.
  • the precision punching die is designed and manufactured according to the antenna design pattern, and then die-cutting, electroplating copper, electroplating nickel, Electroplated gold is then attached to the antenna base by hot-melt welding or riveting.
  • the antenna base is made of PC polycarbonate or other plastic materials and molded by injection molding.
  • the mobile phone built-in antenna described in Patent No. 200520041592.8 uses two kinds of metal microstrip patches of different shapes, such as a low-frequency radiator and a high-frequency radiator, and is precision punched and bent by using materials such as brass sheets and white copper.
  • the above method uses metal foil for precision punching and forming, bending, more processing steps, more investment equipment, and a large amount of metal materials and processing costs, while the product is large in size and takes up a lot of space.
  • a built-in mobile phone antenna and a manufacturing method thereof are described in the application No. 200710122188, publication No. 101145633, the method comprising: A, designing a two-color injection mold, B, using a non-platable material for the first injection molding, forming a bracket portion; The electroplatable material is subjected to a second injection molding to form a radiation portion; C. electroplating the entirety of the stent portion and the radiation sheet portion.
  • This method requires two-color injection molds. The cost of the mold is high, which is three times higher than the cost of ordinary molds. At the same time, the two-color injection molding machine is used for injection molding. The cost is high, which is more than twice the cost of ordinary injection molding. The efficiency is only 50% of that of ordinary injection molding machines. Moreover, in the subsequent electroplating process, the product yield is also very low, mass production is more difficult, and the cost is higher.
  • the object of the present invention is to provide a built-in antenna for a mobile phone, which can be disposed on the antenna base of the mobile phone or the back of the outer casing of the mobile phone.
  • the antenna base used is made of ordinary PC (polycarbonate) or PP (polypropylene) or PET (polyethylene terephthalate) or POM (polyoxymethylene, acetal resin) or PE (polyethylene) or PP0.
  • Plastic raw materials such as (polyphenylene ether) or PPS (polyphenylene sulfide) or PA (nylon) are injection molded.
  • the ink or paint used in the printing or spraying process is an ordinary ABS ink that can be plated, or a modified polystyrene ink, or a modified polystyrene paint, or an epoxy resin ink, or an epoxy paint, or added Ink for conductive metal powder, or paint with conductive metal powder; electroplating process using ordinary ABS plastic plating process or electroless plating process, so that the printed or sprayed antenna pattern is plated with multiple layers of metal film, these metal films
  • the thickness of the layer can be controlled according to the design performance requirements of the antenna.
  • the electroplating process parameters such as current magnitude and length of time are controlled.
  • the production technology is very mature and stable, and there is no technical difficulty.
  • the mobile phone built-in antenna according to the present invention is characterized in that: a plurality of built-in antennas having a layered structure are arranged on the surface of the injection molded antenna base or the back of the mobile phone casing, and the layered structure is the first layer of ink from the inside to the outside. a layer or a paint layer, a second layer of electroless copper or electroless nickel, a third layer of electroplated copper or electroless copper, a fourth layer of electroplated nickel or an electroless nickel layer.
  • the ink layer is an ABS ink layer or a modified polystyrene ink layer or an epoxy ink layer or an ink layer added with a conductive metal powder;
  • the paint layer is an ABS paint layer or a modified polystyrene paint layer or ring An oxyresin paint layer or a paint layer to which conductive metal powder is added.
  • the fifth layer of the electroplated gold layer or the electroless gold plating layer may be added to the present invention.
  • the invention has the beneficial effects that the printing film or the spraying construction method has a thin film thickness, and the subsequent plating layer is also thin, and the total thickness thereof is generally about 30 micrometers to achieve the performance requirement of the antenna, because the basic It occupies the internal space of the mobile phone, and can also be constructed on the back of the mobile phone case without the need to separately inject the antenna base.
  • a variety of antennas can be placed on a mobile phone.
  • FIG. 1 is a schematic view showing the antenna of the present invention installed on a base
  • FIG. 2 is a schematic view showing the layered structure of the antenna of the present invention.
  • Electroless copper plating layer or electroless nickel plating layer 3. Electroplated copper layer or electroless copper plating layer, 4. Electroplated nickel layer or electroless nickel plating layer, 5. Electroplated gold layer or electroless gold plating Layer, 6. base, 7. built-in antenna.
  • the mobile phone built-in antenna of the present invention is provided with a built-in antenna 7 having a layered structure on the surface of the injection molded antenna base 6 as shown in Figs. 1 and 2, and the layered structure is the first layer of ink from the inside to the outside.
  • Layer or paint layer 1 second layer of electroless copper or electroless nickel layer 2, third layer of electroplated copper or electroless copper layer 3, fourth layer of electroplated nickel or electroless nickel layer 4, fifth layer plating Gold layer or electroless gold plating layer 5.
  • Injection molding antenna base 6 using commercially available PC or PP or PET or PP0 or PPS or PA or POM or PE and other plastic materials, through the mold injection molding process. It is also possible to make an antenna directly on the back of a mobile phone case molded from a PC or other material without the antenna base 6.
  • the 3 processed parts are electroplated according to the ordinary ABS plastic electroplating process. If the direct printing or spraying of the conductive paint can be directly subjected to electroless copper plating, electroless nickel plating, electroless gold plating, such that the antenna pattern printed or sprayed
  • the multi-layer metal film layer is plated.
  • the thickness of these metal film layers can be controlled according to the design performance requirements of the antenna.
  • the electroplating process parameters such as current magnitude and length of time are controlled. Now the plastic plating technology is mature and very stable. More details.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)

Abstract

本发明公开一种手机内置天线，在注塑成型的天线底座表面或手机外壳背面设若干根具有层状结构的内置天线，其层状结构由里至外分别为第一层油墨层或油漆层，第二层化学镀铜层或化学镀镍层，第三层电镀铜层或化学镀铜层，第四层电镀镍层或化学镀镍层，第五层电镀金层或化学镀金层。本发明采用印刷或喷涂的施工方法，漆膜层厚度很薄，其后的电镀层也很薄，总厚度一般在30微米左右就能达到天线的性能要求，基本不占用手机内部空间，而且也可以在手机外壳背面进行施工制作，不需要另外注塑天线底座。一部手机上可布置多种天线。

Description

一种手机内置天线 技术领域
本发明涉及一种手机内置天线，特别是一种在注塑成型的天线底座表面或手机外壳背面设若干根具有层状结构的内置天线。
背景技术
随着3G、4G手机的应用越来越多，手机要求配置的天线也越来越多，由于客户要求手机重量越来越轻，体积越来越小，厚度越来越薄，所以对手机的内置天线提出了更高的要求。
传统的内置天线制造方法，其材料为铍铜、黄铜、白铜、不锈钢等其它材料，首先按天线设计图形进行精密冲切模具设计制造，再进行冲切成型，再电镀铜、电镀镍、电镀金，然后再通过热熔焊接或铆接，连接在天线底座上，天线底座是由PC聚碳酸酯或其他塑胶材料经过模具制造，注塑成型得来。如专利号200520041592.8所述的一种手机内置天线，采用低频辐射体和高频辐射体两种不同形状的金属微带贴片，采用如黄铜片和洋白铜等材质进行精密冲切，弯折成型，然后电镀镍、电镀金，粘贴于聚苯乙烯塑料注塑而成的天线底座上、置于金属接地板上，作为天线的制造方法。上述方法采用金属薄片进行精密冲切成型，弯折，加工工序较多，投资设备较多，且费了大量的金属材料和加工成本，同时产品体积较大，占用了大量的空间。
又如一种内置式手机天线及其制造方法，申请号200710122188，公开号101145633所述，该方法包括：A、设计双色注塑模具，B、使用不可电镀材料进行第一次注塑，成型支架部分；使用可电镀材料进行第二次注塑，成型辐射部分；C、对由所述支架部分和所述辐射片部分构成的整体进行电镀。此方法需开双色注塑模具，模具成本高，比普通模具成本高3倍，同时注塑也要采用双色注塑成型机，费用高，是普通注塑成本的2倍以上，效率只有普通注塑机的50%，而且，在后续电镀过程中产品成品率也非常低，大批量生产更困难，成本更高。
发明内容
本发明的目的，是要提供一种手机内置天线，它可设于手机的天线底座或手机的外壳背面。其使用的天线底座采用普通的PC（聚碳酸酯）或PP（聚丙烯）或PET（聚对苯二甲酸乙二酯）或POM（聚甲醛、缩醛树脂）或PE（聚乙烯）或PP0（聚苯醚）或PPS（聚苯硫醚）或PA（尼龙）等塑胶原料注塑加工而成。印刷或喷涂工序所使用的油墨或油漆原料为可电镀的普通ABS油墨，或改性聚苯乙烯油墨，或改性聚苯乙烯油漆，或环氧树脂油墨，或环氧树脂油漆，或添加有导电金属粉的油墨，或添加有导电金属粉的油漆；电镀工艺采用普通ABS塑胶电镀工艺或化学镀工艺，这样通过印刷或喷涂出的天线图形就电镀上了多层金属膜层，这些金属膜层的厚度可按天线的设计性能要求，通过电镀工艺参数如电流大小、时间长短等来进行控制，其生产技术非常成熟，且非常稳定，没有技术难度。
本发明所述一种手机内置天线，其特征是：在注塑成型的天线底座表面或手机外壳背面设若干根具有层状结构的内置天线，其层状结构由里至外分别为第一层油墨层或油漆层，第二层化学镀铜层或化学镀镍层，第三层电镀铜层或化学镀铜层，第四层电镀镍层或化学镀镍层。
所述油墨层为ABS油墨层或改性聚苯乙烯油墨层或环氧树脂油墨层或添加有导电金属粉的油墨层；所述油漆层为ABS油漆层或改性聚苯乙烯油漆层或环氧树脂油漆层或添加有导电金属粉的油漆层。
为了使天线的效果更好，本发明可增设第五层电镀金层或化学镀金层。
本发明的有益效果是，采用印刷或喷涂的施工方法，漆膜层厚度很薄，其后的电镀层也很薄，其总厚度一般在30微米左右就能达到天线的性能要求，因基本不占用手机内部空间，而且也可以在手机外壳背面进行施工制作，不需要另外注塑天线底座。一部手机上可布置多种天线。
附图说明
图1为本发明天线设于底座示意图；
图2为本发明天线的层状结构示意图。
图中标号说明
1.油墨层或油漆层，2.化学镀铜层或化学镀镍层，3.电镀铜层或化学镀铜层，4.电镀镍层或化学镀镍层，5.电镀金层或化学镀金层，6.底座，7.内置天线。
具体实施方式
本发明所述一种手机内置天线，如图1、2所示，在注塑成型的天线底座6表面设具有层状结构的内置天线7，其层状结构由里至外分别为第一层油墨层或油漆层1，第二层化学镀铜层或化学镀镍层2，第三层电镀铜层或化学镀铜层3，第四层电镀镍层或化学镀镍层4，第五层电镀金层或化学镀金层5。具体加工步骤如下：
①注塑成型天线底座6，采用市售的PC或PP或PET或PP0或PPS或PA或POM或PE等塑胶原料，通过模具注塑加工而成。也可不要天线底座6，直接在PC或其他材料注塑而成的手机外壳背部制作天线。
②印刷或喷涂加工，使用普通移印机或网印机或喷涂设备。按设计要求的天线图形，使用ABS油墨或改性聚苯乙烯油墨或环氧树脂油墨或添加有导电金属粉的油墨；或用ABS油漆或改性聚苯乙烯油漆或环氧树脂油漆或添加有导电金属粉的油漆，进行印刷或喷涂加工。
③ 将②处理好的工件进行烘烤，使其完全干燥。
④电镀处理，将③处理好工件按普通ABS塑胶电镀工艺电镀处理，如果直接印刷或喷涂导电漆的可以直接进行化学镀铜，化学镀镍，化学镀金处理，这样通过印刷或喷涂出的天线图形就电镀上了多层金属膜层，这些金属膜层的厚度可按天线的设计性能要求，通过电镀工艺参数如电流大小、时间长短等来进行控制，现在塑胶电镀技术成熟、非常稳定，这里不再详述。

Claims (3)

1、一种手机内置天线，其特征是：在注塑成型的天线底座表面或手机外壳背面设若干根具有层状结构的内置天线，其层状结构由里至外分别为第一层油墨层或油漆层，第二层化学镀铜层或化学镀镍层，第三层电镀铜层或化学镀铜层，第四层电镀镍层或化学镀镍层。
2、根据权利要求1所述的一种手机内置天线，其特征是：所述油墨层为ABS油墨层或改性聚苯乙烯油墨层或环氧树脂油墨层或添加有导电金属粉的油墨层；所述油漆层为ABS油漆层或改性聚苯乙烯油漆层或环氧树脂油漆层或添加有导电金属粉的油漆层。
3、根据权利要求1所述的一种手机内置天线，其特征是：增设第五层电镀金层或化学镀金层。
PCT/CN2010/080100 2009-12-23 2010-12-22 一种手机内置天线 WO2011076118A1 (zh)

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CN110544817A (zh) * 2018-05-29 2019-12-06 西安美频电子科技有限公司 一种可焊接金属化注塑天线振子
US11018413B2 (en) 2011-12-22 2021-05-25 Nokia Technologies Oy Apparatus comprising an antenna and a ground plane, and a method of manufacture

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CN102832449B (zh) * 2011-06-16 2015-04-08 赛恩倍吉科技顾问（深圳）有限公司 天线组件和该天线组件的制造方法
CN102394338A (zh) * 2011-07-14 2012-03-28 加利电子(无锡)有限公司 内置天线及其生产工艺
CN102891359A (zh) * 2011-07-22 2013-01-23 深圳市长盈精密技术股份有限公司 一种手机内置印刷天线的制作工艺
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CN104795631A (zh) * 2014-01-22 2015-07-22 深圳富泰宏精密工业有限公司 壳体,该壳体的制作方法及应用该壳体的电子装置
CN111954409B (zh) * 2020-08-13 2021-09-14 东莞美景科技有限公司 一种内置天线的壳体的制备方法

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