CN103745771A - Wires for signal transmission - Google Patents

Abstract

The invention provides a wire for signal transmission, which comprises a copper conductor and a shielding layer, wherein the shielding layer is an electromagnetic shielding film. The invention uses single shielding material to replace the prior at least two shielding materials, thereby reducing the use of materials, reducing the investment of equipment, reducing the production flow, improving the production efficiency, reducing the resource consumption, reducing the production cost and improving the transmission performance. And meets the requirements of European Union and related environmental protection regulation and related international and domestic safety regulations, and simultaneously reduces the quality problem caused by a plurality of shielding processing procedures.

Description

Translated fromChinese

用于信号传输方面的线材Wires for signal transmission

技术领域technical field

本发明属于信号传输用途的线材以及电磁屏蔽技术领域，具体而言，本发明特别涉及一种利用电磁屏蔽膜(Electromagnetic Shield Film，又称EMI Shield Film)材料来取代现在信号传输线（缆）所使用的屏蔽材料与加工工序的用于信号传输方面的线材。The invention belongs to the technical field of wires for signal transmission and electromagnetic shielding. Specifically, the invention particularly relates to a method of using electromagnetic shielding film (Electromagnetic Shield Film, also known as EMI Shield Film) material to replace the current signal transmission line (cable). The shielding material and the wire used for signal transmission in the processing process.

背景技术Background technique

在信号传输线(包含机内线与机外线)的电线生产行业，针对阻抗、衰减、防止信号的干扰以及为了防止内部传输时流失的损耗，需要进行大量的屏蔽加工工艺与工序来达到产品所需要的屏蔽效果要求。In the wire production industry of signal transmission lines (including internal wires and external wires), a large number of shielding processing processes and procedures are required to achieve the requirements of the product for impedance, attenuation, signal interference prevention, and loss loss during internal transmission. Shielding effect requirements.

目前，业界为了解决一个屏蔽问题，需要使用最少两层或屏蔽材料与最少两次的加工工序进行一层一层的包覆。At present, in order to solve a shielding problem, the industry needs to use at least two layers or shielding materials and at least two processing steps for layer-by-layer coating.

对于RG系列线材，需要实施以下工序：图1所示的工序一，在用于信号传输的铜导体11上覆盖PE材料层12，以保证铜导体11绝缘。图2所示的工序二，在PE材料层12外侧包覆麦拉铝箔13，以作为第一次电磁屏蔽之用。图3所示的工序三，在麦拉铝箔13外侧包覆编织层14，以作为第二次电磁屏蔽之用。图4所示的工序四，在编织层14外侧包覆麦拉铝箔15，以作为第三次电磁屏蔽之用。图5所示的工序五，在麦拉铝箔15外侧包覆编织层16，以作为第四次电磁屏蔽之用。图6所示的工序六，在编织层16外侧包覆外被17，产品完成。For the RG series wires, the following steps need to be implemented: Step 1 shown in FIG. 1 , covering thecopper conductor 11 for signal transmission with aPE material layer 12 to ensure the insulation of thecopper conductor 11 . Step 2 shown in FIG. 2 is to wrap Mylaraluminum foil 13 on the outside of thePE material layer 12 for the first electromagnetic shielding. Step 3 shown in FIG. 3 is to wrap the braidedlayer 14 on the outside of the Mylaraluminum foil 13 for the second electromagnetic shielding. In the fourth step shown in FIG. 4 , the Mylaraluminum foil 15 is wrapped on the outside of the braidedlayer 14 for the third electromagnetic shielding. Step 5 shown in FIG. 5 is to wrap the braidedlayer 16 on the outer side of the Mylaraluminum foil 15 for fourth electromagnetic shielding. In process six shown in FIG. 6 , theouter sheath 17 is covered on the outer side of the braidedlayer 16 , and the product is completed.

对于Lan cable系列线材，需要实施以下工序：图7所示的工序一，在用于信号传输的铜导体21上覆盖PE材料层22，以保证铜导体21绝缘。图8所示的工序二，两股芯线对绞，以保证电气特性。图9所示的工序三，多股对绞后的芯线总绞。图10所示的工序四，在多股芯线、地线和十字骨架线外包覆麦拉铝箔23。图11所示的工序五，在麦拉铝箔23外侧包覆编织层24。图12所示的工序六，在编织层25外包覆外被25。For the Lancable series wires, the following procedures need to be implemented: Procedure 1 shown in Figure 7, covering thecopper conductor 21 for signal transmission with aPE material layer 22 to ensure the insulation of thecopper conductor 21. In the second process shown in Figure 8, the two strands of core wires are twisted in pairs to ensure electrical characteristics. Step 3 shown in FIG. 9 , the core wires are twisted after twisting multiple strands. Step 4 shown in FIG. 10 , wrapping Mylaraluminum foil 23 on the multi-strand core wire, the ground wire and the cross frame wire. In step five shown in FIG. 11 , wrap thebraided layer 24 on the outer side of the Mylaraluminum foil 23 . In step six shown in FIG. 12 , the braidedlayer 25 is covered with anouter sheath 25 .

由上可知，目前的线材屏蔽加工工艺需要消耗大量的材料、使用大量的人员、投入高昂的设备以及大量的品质管理工序用于保证多重工艺过程的产品品质，造成生产成本的上升和资源的消耗与浪费。It can be seen from the above that the current wire shielding process requires the consumption of a large amount of materials, the use of a large number of personnel, the investment of expensive equipment and a large number of quality management procedures to ensure the product quality of multiple processes, resulting in an increase in production costs and consumption of resources. with waste.

发明内容Contents of the invention

本发明的目的在于提供一种用于信号传输方面的线材，以解决现有线材存在的屏蔽工艺复杂、生产成本高、品质管理困难等问题。The object of the present invention is to provide a wire used for signal transmission, so as to solve the existing problems of the existing wire such as complex shielding process, high production cost, and difficult quality management.

为了解决上述问题，本发明提供一种用于信号传输方面的线材，其技术方案如下：In order to solve the above problems, the present invention provides a wire for signal transmission, and its technical solution is as follows:

一种用于信号传输方面的线材，包括铜导体，其中，还包括屏蔽层，所述屏蔽层为一层电磁屏蔽膜。A wire used for signal transmission includes a copper conductor, and further includes a shielding layer, and the shielding layer is a layer of electromagnetic shielding film.

优选地，在所述用于信号传输方面的线材中，还包括绝缘层，所述绝缘层包覆于所述铜导体外侧，所述屏蔽层包覆于所述绝缘层外侧。Preferably, the wire used for signal transmission further includes an insulating layer, the insulating layer covers the outer side of the copper conductor, and the shielding layer covers the outer side of the insulating layer.

优选地，在所述用于信号传输方面的线材中，还包括外被，所述外被包覆于所述屏蔽层外侧。线材Preferably, the wire used for signal transmission further includes an outer jacket, and the outer jacket covers the outer side of the shielding layer. wire

优选地，在所述用于信号传输方面的线材中，所述线材为RF、RG、FFC系列信号传输线材或者通讯及信号传输方面用的同轴电线、电缆。Preferably, among the wires used for signal transmission, the wires are RF, RG, FFC series signal transmission wires or coaxial wires and cables for communication and signal transmission.

优选地，在所述用于信号传输方面的线材中，所述电磁屏蔽膜包括叠置的绝缘层和导电层。Preferably, in the wire used for signal transmission, the electromagnetic shielding film includes a laminated insulating layer and a conductive layer.

优选地，在所述用于信号传输方面的线材中，所述电磁屏蔽膜包括依次叠置的绝缘层、金属层和导电层。Preferably, in the wire used for signal transmission, the electromagnetic shielding film includes an insulating layer, a metal layer and a conductive layer stacked in sequence.

优选地，在所述用于信号传输方面的线材中，所述绝缘层为两层结构。Preferably, in the wire used for signal transmission, the insulating layer has a two-layer structure.

综上，本发明使用单一屏蔽材料(电磁屏蔽膜)来替代目前的最少使用{2}种屏蔽材料，借此，本发明可以减少材料的使用，减少设备的投资，减少生产的流程，提高生产效率，减少资源消耗，降低生产成本，提升传输性能。并且符合欧盟及相关环境保护规定条例与相关国际安规、国内安规的要求，同时减少因为多次屏蔽加工工序所产生的品质问题。In summary, the present invention uses a single shielding material (electromagnetic shielding film) to replace the current least used {2} kinds of shielding materials, whereby the present invention can reduce the use of materials, reduce equipment investment, reduce production processes, and improve production Efficiency, reducing resource consumption, reducing production costs, and improving transmission performance. And it complies with the requirements of the European Union and relevant environmental protection regulations and relevant international safety regulations and domestic safety regulations, and at the same time reduces the quality problems caused by multiple shielding processing procedures.

附图说明Description of drawings

图1-图6为现有RG系列线材的生产工序流程图；Figures 1-6 are the flow charts of the production process of the existing RG series wire rods;

图7-图12为现有Lan cable系列线材的生产工序流程图；Fig. 7-Fig. 12 is the production process flowchart of existing Lancable series wire rod;

图13为本发明实施例一的结构示意图；Fig. 13 is a schematic structural diagram of Embodiment 1 of the present invention;

图14为本发明实施例二的结构示意图；Fig. 14 is a schematic structural diagram of Embodiment 2 of the present invention;

图15-图17为生产本发明实施例三的工序流程图；Fig. 15-Fig. 17 is the process flowchart of producing the third embodiment of the present invention;

图18-图22为生产本发明实施例四的工序流程图；Fig. 18-Fig. 22 is the process flowchart of producing the fourth embodiment of the present invention;

图23为本发明各实施例的第一种电磁屏蔽膜的分层结构示意图；23 is a schematic diagram of the layered structure of the first electromagnetic shielding film of various embodiments of the present invention;

图24为本发明各实施例的第二种电磁屏蔽膜的分层结构示意图。Fig. 24 is a schematic diagram of the layered structure of the second electromagnetic shielding film according to various embodiments of the present invention.

具体实施方式Detailed ways

下面结合附图和具体实施方式对本发明做进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

如图13所示，本发明实施例一包括铜导体51、作为屏蔽层的电磁屏蔽膜52，电磁屏蔽膜52包覆在铜导体51外，以提供电磁屏蔽之用。该实施例一不具有外被结构，应作为电子设备的内置线材，独立应用。As shown in FIG. 13 , Embodiment 1 of the present invention includes acopper conductor 51 and anelectromagnetic shielding film 52 as a shielding layer. Theelectromagnetic shielding film 52 is wrapped around thecopper conductor 51 to provide electromagnetic shielding. The first embodiment has no external structure, and should be used independently as a built-in wire of an electronic device.

图14所示，本发明实施例二包括多根铜导体51、电磁屏蔽膜521、电磁屏蔽膜522，多根铜导体51之间平行、间隔设置，电磁屏蔽膜521包覆于多根铜导体51一侧，电磁屏蔽膜522包覆于多根铜导体51另一侧，在相邻的两根铜导体51之间的空隙510处，电磁屏蔽膜521、电磁屏蔽膜522连接为一体，以隔开相邻的两根铜导体51。该实施例二可以作为电子设备的排线之用。As shown in Figure 14, the second embodiment of the present invention includes a plurality ofcopper conductors 51, anelectromagnetic shielding film 521, and anelectromagnetic shielding film 522. The plurality ofcopper conductors 51 are arranged in parallel and at intervals, and theelectromagnetic shielding film 521 is coated on the plurality of copper conductors. 51, theelectromagnetic shielding film 522 is coated on the other side of the plurality ofcopper conductors 51, and at thegap 510 between twoadjacent copper conductors 51, theelectromagnetic shielding film 521 and theelectromagnetic shielding film 522 are connected as a whole, so as to Twoadjacent copper conductors 51 are separated. The second embodiment can be used for wiring of electronic equipment.

如图15-图17所示，本发明实施例三为RG系列线材，其生产工序基本包括：图15所示的工序一，在用于信号传输的铜导体31上覆盖PE材料层32，以保证铜导体31绝缘。图16所示的工序二，在PE材料层32外侧包覆电磁屏蔽膜33。图17所示的工序三，在电磁屏蔽膜33外侧包覆外被34，至此，RG线材产品完成。可见，与现有技术相比，其生产工序、材料均有明显减少。As shown in Figures 15-17, Embodiment 3 of the present invention is an RG series wire rod, and its production process basically includes: process 1 shown in Figure 15, covering aPE material layer 32 on acopper conductor 31 for signal transmission, and Ensure that thecopper conductor 31 is insulated. In the second step shown in FIG. 16 , theelectromagnetic shielding film 33 is coated on the outside of thePE material layer 32 . Step 3 shown in FIG. 17 is to wrap theouter jacket 34 on the outside of theelectromagnetic shielding film 33 , so far, the RG wire product is completed. It can be seen that compared with the prior art, its production process and materials are significantly reduced.

如图18-图22所示，本发明实施例四为Lan cable系列线材，其生产工序基本包括：图18所示的工序一，在用于信号传输的铜导体41上覆盖PE材料层42，以保证铜导体41绝缘。图19所示的工序二，两股芯线对绞，以保证电气特性。图20所示的工序三，多股对绞后的芯线总绞。图21所示的工序四，在多股芯线、地线和十字骨架线外包覆电磁屏蔽膜43。图22所示的工序五，在电磁屏蔽膜43外侧包覆外被44，至此，Lan cable线材产品完成。可见，与现有技术相比，其生产工序、材料也均有明显减少。As shown in Fig. 18-Fig. 22, Embodiment 4 of the present invention is a Lancable series wire rod, and its production process basically includes: Process 1 shown in Fig. 18, covering the PE material layer 42 on thecopper conductor 41 for signal transmission, To ensure that thecopper conductor 41 is insulated. In process 2 shown in Figure 19, two strands of core wires are twisted in pairs to ensure electrical characteristics. Step 3 shown in FIG. 20 , the core wires are twisted after twisting multiple strands. Step 4 shown in FIG. 21 is to wrap theelectromagnetic shielding film 43 on the outside of the multi-strand core wire, the ground wire and the cross skeleton wire. Step 5 shown in FIG. 22 is to wrap theouter jacket 44 on the outside of theelectromagnetic shielding film 43, so far, the Lancable wire product is completed. It can be seen that compared with the prior art, its production process and materials are also significantly reduced.

如图23所示，本发明提供的第一种电磁屏蔽膜包括绝缘层62、导电层63。在包覆于线材之前，绝缘层62、导电层63的两外表面还覆盖有保护膜层61、保护膜层62。As shown in FIG. 23 , the first type of electromagnetic shielding film provided by the present invention includes aninsulating layer 62 and aconductive layer 63 . Before covering the wires, the two outer surfaces of theinsulating layer 62 and theconductive layer 63 are also covered with aprotective film layer 61 and aprotective film layer 62 .

如图24所示，本发明提供的第二种电磁屏蔽膜包括绝缘层72、金属层73、导电层74。在包覆于线材之前，绝缘层72、导电层74的两外表面还覆盖有保护膜层71、保护膜层75。As shown in FIG. 24 , the second electromagnetic shielding film provided by the present invention includes an insulatinglayer 72 , ametal layer 73 , and aconductive layer 74 . Before covering the wires, the two outer surfaces of the insulatinglayer 72 and theconductive layer 74 are also covered with aprotective film layer 71 and aprotective film layer 75 .

在上述两种电磁屏蔽膜中，保护膜层61、保护膜层62、保护膜层71、保护膜层75可以为PET、麦拉、纸类材料，作为在使用电磁屏蔽膜前保护之用，制作过程中抛弃。绝缘层62、绝缘层72可以为树脂类、矽利康类混合物，产生绝缘功能。绝缘层62、绝缘层72也可以采用双层结构，分为上层绝缘层与下层绝缘层，以产生更好的绝缘效果。金属层73可以使用铜、银等金属，作为导通用。导电层63、导电层74可以使用铜，银类的等方性或异方性导电胶，主要功能为导通作用。In above-mentioned two kinds of electromagnetic shielding films,protective film layer 61,protective film layer 62,protective film layer 71,protective film layer 75 can be PET, Mylar, paper material, as the usefulness of protecting before using electromagnetic shielding film, Discarded during production. The insulatinglayer 62 and the insulatinglayer 72 can be a mixture of resins and silicones to provide an insulating function. The insulatinglayer 62 and the insulatinglayer 72 can also adopt a double-layer structure, which is divided into an upper insulating layer and a lower insulating layer, so as to produce a better insulating effect. Themetal layer 73 can use copper, silver and other metals for conduction. Theconductive layer 63 and theconductive layer 74 can use copper, silver isotropic or anisotropic conductive adhesive, and the main function is conduction.

由上可知，本发明可以为RF、RG、FFC系列线材或者通讯用的同轴电线、电缆。在利用本发明生产制造各类线材、线缆时，“信号线绝缘”与“编织缠绕工序”步骤依据目前电线生产标准工艺进行。作为“单一屏蔽材料”的电磁屏蔽膜经过包覆、热挤压后，即可完成包覆工序，简单易行。最外层的“外被”工序依据目前电线生产标准工艺进行。对于不需要进行“外被”工序，同时没有外观要求的内置线，可以直接以电磁屏蔽膜作为“外被”使用，节省外被工序与成本。It can be seen from the above that the present invention can be RF, RG, FFC series wires or coaxial wires and cables for communication. When using the present invention to produce various types of wires and cables, the steps of "signal wire insulation" and "braiding and winding process" are carried out according to the current standard wire production process. As the "single shielding material", the electromagnetic shielding film can be coated and hot-extruded, and the coating process can be completed, which is simple and easy. The outermost "coating" process is carried out according to the current standard wire production process. For built-in wires that do not require the "covering" process and have no appearance requirements, the electromagnetic shielding film can be used directly as the "covering", saving the process and cost of the covering.

综上，本发明可以取得以下有益效果:In sum, the present invention can obtain following beneficial effect:

大量节省材料的使用，为环保尽一份力量。Save a lot of materials and do your part for environmental protection.

大量简化生产工艺，为生产者节省大量的成本支出。A lot of simplification of the production process saves a lot of cost for the producer.

简化生产流程，降低工艺中的不良率。Simplify the production process and reduce the defect rate in the process.

屏蔽效果经过检测，可以取得比目前工艺提高最少5db以上的屏蔽效果。The shielding effect has been tested, and it can achieve a shielding effect that is at least 5db higher than the current technology.

可以依据使用者对屏蔽效果高低的要求，对电磁屏蔽膜进行屏蔽性能的调整，不需要为了提高屏蔽性能再增加工序，解决生产者为了屏蔽而付出的代价。对于未来需要对线材进行更好的屏蔽效果时， 直接可以调整电磁屏蔽膜的屏蔽效果来直接提升线材的屏蔽特性。The shielding performance of the electromagnetic shielding film can be adjusted according to the user's requirements for the shielding effect, and there is no need to increase the process to improve the shielding performance, which solves the price paid by the producer for shielding. For better shielding effects on wires in the future, the shielding effect of the electromagnetic shielding film can be directly adjusted to directly improve the shielding properties of the wires.

目前传统的线材屏蔽工序在屏蔽问题上面，已经接近极限，不容易再提升屏蔽效果，而电磁屏蔽膜在屏蔽效果上面还具备接近1倍以上(50db 97db)的提升能力。At present, the traditional wire shielding process is close to the limit of the shielding problem, and it is not easy to improve the shielding effect. However, the electromagnetic shielding film has the ability to improve the shielding effect by nearly 1 times (50db 97db).

改善传统加工工艺，更能适当的配合未来新产品的特殊要求。Improve the traditional processing technology, and better meet the special requirements of future new products.

配合EMI产品的特性，更可以有效解决现有信号线材在包装、运输、外在环境及使用方法上所造成的性能损失及下降，防止完成成品后的可变因素发生。Cooperating with the characteristics of EMI products, it can effectively solve the performance loss and decline caused by the packaging, transportation, external environment and use methods of existing signal wires, and prevent variable factors from occurring after the finished product is completed.

因替代材料EMI特性优于现有屏蔽材料（铝/锡箔）可改善生产过程中因铝/锡箔断裂而造成的停机、更换、接头等质量问题 更可降低因需一次性不间断生产的工艺要求，大幅度的降低制损费用。如网络线（屏蔽线类）以305M为包装方式，305M中不能发生上述事项，否则产生的生产米数全为不良品。Because the EMI characteristics of the alternative material are better than the existing shielding material (aluminum/tin foil), it can improve the quality problems caused by the breakage of aluminum/tin foil during the production process, such as shutdown, replacement, joints, etc. It can also reduce the process requirements for one-time uninterrupted production , greatly reducing the loss cost. For example, the network cable (shielded cable) is packaged in 305M, and the above-mentioned matters cannot occur in 305M, otherwise the production meters produced are all defective products.

由技术常识可知，本发明可以通过其它的不脱离其精神实质或必要特征的实施方案来实现。因此，上述公开的实施方案，就各方面而言，都只是举例说明，并不是仅有的。所有在本发明范围内或在等同于本发明的范围内的改变均被本发明包含。It can be known from common technical knowledge that the present invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Claims (8)

1. for a wire rod for side signal transmission face, comprise copper conductor, it is characterized in that, also comprise screen, described screen is one deck electromagnetic shielding film.

2. the wire rod for side signal transmission face according to claim 1, is characterized in that, also comprises insulating barrier, and described insulating barrier is coated on described copper conductor outside, and described screen is coated on described insulating barrier outside.

3. the wire rod for side signal transmission face according to claim 2, is characterized in that, also comprises outer quilt, the described outer described screen outside that is coated on.

4. the wire rod for side signal transmission face according to claim 1, is characterized in that, described wire rod is RF, RG, FFC series of signals wire rod.

5. the wire rod for side signal transmission face according to claim 1, is characterized in that, described wire rod is coaxial cord, the cable that communication and side signal transmission face are used.

6. the wire rod for side signal transmission face according to claim 1, is characterized in that, described electromagnetic shielding film comprises stacked insulating barrier and conductive layer.

7. the wire rod for side signal transmission face according to claim 1, is characterized in that, described electromagnetic shielding film comprises stacked successively insulating barrier, metal level and conductive layer.

8. according to the wire rod for side signal transmission face described in claim 6 or 7, it is characterized in that, described insulating barrier is double-layer structure.

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