CN108140934B - 用于制造天线罩的方法及对应的天线罩 - Google Patents

用于制造天线罩的方法及对应的天线罩 Download PDF

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CN108140934B
CN108140934B CN201680056462.2A CN201680056462A CN108140934B CN 108140934 B CN108140934 B CN 108140934B CN 201680056462 A CN201680056462 A CN 201680056462A CN 108140934 B CN108140934 B CN 108140934B
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沃尔夫冈·尼克
托马斯·罗斯特
罗兰·施瓦兹
大卫·阿卢伊
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Hella GmbH and Co KGaA
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    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3456—Antennas, e.g. radomes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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Abstract

本发明涉及一种用于制造天线罩(10)的方法，其中使用具有金属结构(2)的柔性印刷电路板(1)。所述柔性印刷电路板(1)被压印并且用热塑性塑料(11，21)进行背面模塑背面，并且电接触元件(46)与柔性印刷电路板连接。在背面背面模塑之前向接触元件上放置连接器筐部(50)。

Description

用于制造天线罩的方法及对应的天线罩
技术领域
本发明涉及一种尤其是用于机动车辆的天线罩,以及涉及一种用于制造天线罩的方法。
背景技术
天线罩是雷达传感器的对雷达射束基本上透明的覆盖物，其中雷达传感器发射雷达射束并且优选地还再次接收雷达射束，以便能够从中生成雷达传感器的环境的图像或能够生成关于此的信息。
这样的天线罩被用在机动车辆中，以便能够覆盖例如车辆前部的雷达传感器，从而保护雷达传感器免受脏污、水、冰或雪以及其它不期望影响的损害。在此公知的是，天线罩也可以被电加热，由此例如可以在冬天避免或除去结冰、水层或雪层。这是所期望的，因为雷达传感器的功能由于这样的层而部分地受到强烈影响。
这样的天线罩例如已经被DE 10 2013 012 785A1公开了。在此，在两个膜之间放置一系列导线，这些膜被深冲并且用塑料进行背面注塑。在此，天线罩的接触方式通过接触板实现，该接触板与所置入的导线相连接。
已显示这样的构造是更复杂和/或昂贵的。
发明内容
因此，本发明的目的是提供一种天线罩，该天线罩可以简单且不复杂地制造并且仍然可以简单地被电接触。本发明的目的还在于提供一种用于制造天线罩的方法，该方法提供了简单且低成本的制造天线罩的步骤。
根据本发明的方法的目的通过权利要求1的特征来实现。
本发明的一个实施例提供了一种用于制造天线罩的方法，其中使用具有金属结构的柔性印刷电路板，并且该柔性印刷电路板用热塑性塑料进行背面注塑(hinterspritzt)，并且电接触元件与柔性印刷电路板连接，其中在背面注塑之前向接触元件上放置连接器筐部。由此，可以在背面注塑时，尤其是在注塑模具中保护与柔性印刷电路板连接的接触元件。在此，连接器筐部被置于接触元件之上，并且借助于塑料材料的背面注塑与柔性印刷电路板连接。
在此，特别有利的是，柔性印刷电路板由具有金属结构的柔性膜制成。由此，可以实现简单的构造，其中同时还可以通过选择例如层压膜来影响膜的强度。
特别有利的是，接触元件与金属结构导电地连接。由此，可以进行金属结构到电路的良好连接，以便将金属结构用作电加热装置。
还有利的是，连接器筐部通过热塑性塑料的背面注塑被固定在膜处。这样，可以在一个步骤中还固定连接器筐部。
还特别有利的是，连接器筐部通过热塑性塑料的背面注塑与背面注塑的塑料一体化地形成基板。由此，连接器筐部被热塑性材料包覆成形，并且被构造为一体化地与其连接，并且在此产生基板。
在此，特别有利的是，热塑性塑料被背面注塑在膜的具有金属结构的那侧。由此，金属结构被热塑性塑料覆盖和保护。
还有利的是，这样生成的扁平塑料元件与前板连接。由此，天线罩例如可以与机动车辆的车辆前部相匹配。
根据本发明的关于天线罩的目的通过权利要求8的特征来实现。
本发明的一个实施例提供了一种天线罩，其具有带有金属结构的扁平塑料元件，其中所述塑料元件由具有背面注塑的热塑性塑料的膜构成，其中设置有与膜连接的接触元件，所述接触元件被连接器筐部覆盖。
另外的有利的扩展方案通过下面的附图说明并且通过从属权利要求来描述。
附图说明
下面基于至少一个实施例并根据附图的各图进一步阐述本发明。附图：
图1示出了根据本发明的天线罩的示意图；
图2示出了天线罩的截面图；
图3示出了另一实施例的示意图；
图4示出了根据图3的具有前板的天线罩的爆炸图；
图5示出了具有金属结构并且具有接触元件的柔性印刷电路板的部分视图，所述接触元件被连接器筐部覆盖；以及
图6示出了连接器筐部的图示，其具有柔性印刷电路板的背面注塑和连接器筐部的包覆成形。
附图标记列表
1 柔性印刷电路板
2 金属结构
3 压痕
4 压痕
5 膜
6 长度侧
7 长度侧
8 狭窄侧
9 狭窄侧
10 天线罩
11 背面注塑的塑料
12 层
20 背面注塑的膜
21 热塑性塑料
22 边缘
23 连接接触部
30 膜
31 具有背面注塑的塑料的膜
32 前板
33 插头
40 柔性印刷电路板
41 金属结构
46 电接触部、电接触元件
50 连接器筐部
60 背面注塑的塑料
具体实施方式
图1示出了被构造成膜5的柔性印刷电路板1，其具有金属结构2。膜5被构造为基本上矩形的，并且具有槽形压痕3、4。压痕3、4被设置成不同形式。在图1中，其中一个压痕4从上到下穿过膜5、从长度侧6到达相对的长度侧7。两个压痕中的另一个压痕3从各个狭窄侧8、9向中部方向行进，但并未延伸到中部。
金属结构2由线形金属桥接部构成，所述桥接部可以由扁平金属结构制成。
该膜5通过背面注塑被涂覆热塑性塑料。这可以在图2中看出。
图2示出了天线罩10的截面，其中柔性印刷电路板1尤其是被构造成膜5并且具有金属结构2。金属结构2被设置为根据线形条的示例性形状，但是也可以以被构造为其它形式。
柔性印刷电路板1被热压印，并且具有压痕3、4，但是所述压痕3、4在图2中未示出。然后，用热塑性塑料11对柔性印刷电路板1进行背面注塑。在此，背面注塑的塑料11被涂敷在膜5的上面设有金属结构2的那侧。在此，背面注塑的塑料至少局部地覆盖金属结构。
膜5优选地是层压膜、比如尤其是金属化的塑料层压膜。在此，膜优选地是具有PI、PEN或PC的膜。在此，PI表示聚酰亚胺,PC表示聚碳酸酯，并且PEN表示聚萘二甲酸乙二醇酯。
金属化部有利地由铜制成。金属化部或其结构可以被汽相沉积(aufgedampft)。可替代地，金属化部也可以由其它材料制成、例如由铝等制成。该结构的涂敷也可以以其它方式进行。
为了改善背面注塑的塑料11在膜5上的附着，可以例如通过预处理来生成预定义的表面结构。由此，在膜的表面上产生层12，所述层12优选地用于与背面注塑的塑料的增强连接。表面结构例如可以通过压印膜的液体粘结剂形式的部分的表面层来实现。
图3示出了背面注塑的膜20的另一实施例。该膜20用热塑性塑料21进行背面注塑，所述塑料21还超出膜20的边缘22。还可以看见的是用于电接触金属结构的所加工出的连接接触部23，但是所述金属结构在图3中未示出。
图4示出了具有金属化部的膜30的一种分解图。该膜30用热塑性塑料进行背面注塑，并且与背面注塑的塑料31一起形成左边示出的元件。其上可以布置前板32。此外还可以看见插头33，其用于可加热天线罩的电连接。
图5示出了：连接器筐部50如何被放置到柔性印刷电路板40上，其中电接触部46作为接触元件穿过连接器筐部50的开口伸出。接着，通过背面注塑热塑性材料60(参见图6)来对连接器筐部50进行包覆成形，并且将热塑性塑料60背面注塑到被构造成膜的柔性印刷电路板40上。在此，连接器筐部通过包覆成形和背面注塑与柔性印刷电路板连接，并且连接器筐部50通过热塑性塑料60的背面注塑一体化地与背面注塑的塑料60连接成基板。
在此，柔性印刷电路板40有利地由具有金属结构41的柔性膜制成。
图5和6示出了：电接触部部分地被连接器筐部50覆盖，并且部分地通过连接器筐部50中的开口穿出。
在此，热塑性塑料60被背面注塑在膜的具有金属结构41的那侧。

Claims (6)

1.一种用于制造天线罩（10）的方法，其中使用具有金属结构（41）的柔性印刷电路板（40），并且柔性印刷电路板（40）被压印并且用热塑性塑料（60）进行背面注塑，并且接触元件（46）与柔性印刷电路板（40）的金属结构（41）导电地连接，以使金属结构（41）用作电加热装置，其中在背面注塑以前向接触元件（46）上放置连接器筐部（50），连接器筐部（50）通过包覆成形和热塑性塑料（60）的背面注塑与柔性印刷电路板（40）连接并与背面注塑的热塑性塑料（60）一体化地形成基板，且热塑性塑料（60）被背面注塑在柔性印刷电路板（40）的具有金属结构（41）的一侧，接触元件（46）部分地被连接器筐部（50）覆盖，并且部分地通过连接器筐部（50）中的开口穿出。
2.根据权利要求1所述的方法，其特征在于，柔性印刷电路板（40）由具有金属结构（41）的柔性膜（5，30）构成。
3.根据权利要求2所述的方法，其特征在于，连接器筐部（50）通过热塑性塑料（60）的背面注塑被固定在柔性膜处。
4.根据权利要求2所述的方法，其特征在于，热塑性塑料（60）被背面注塑在膜（5，30）的具有金属结构（41）的一侧。
5.根据权利要求1所述的方法，其特征在于，生成的扁平塑料元件与前板（32）连接。
6.一种天线罩（10），其具有带有金属结构（41）的扁平塑料元件，其中所述塑料元件由具有背面注塑的热塑性塑料（60）的膜（5，30）构成，连接器筐部（50）通过包覆成形和热塑性塑料（60）的背面注塑与膜（5，30）连接并与背面注塑的热塑性塑料（60）一体化地形成基板，且热塑性塑料（60）被背面注塑在膜（5，30）的具有金属结构（41）的一侧，接触元件（46）与金属结构（41）导电地连接，以使金属结构（41）用作电加热装置，接触元件（46）部分地被连接器筐部（50）覆盖，并且部分地通过连接器筐部（50）中的开口穿出。
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