WO2021254428A1 - 导电泡棉和电子设备 - Google Patents

导电泡棉和电子设备 Download PDF

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Publication number
WO2021254428A1
WO2021254428A1 PCT/CN2021/100578 CN2021100578W WO2021254428A1 WO 2021254428 A1 WO2021254428 A1 WO 2021254428A1 CN 2021100578 W CN2021100578 W CN 2021100578W WO 2021254428 A1 WO2021254428 A1 WO 2021254428A1
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WIPO (PCT)
Prior art keywords
foam
conductive
foam body
present application
electronic device
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PCT/CN2021/100578
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English (en)
French (fr)
Inventor
叶剑
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维沃移动通信有限公司
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Publication of WO2021254428A1 publication Critical patent/WO2021254428A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper

Definitions

  • This application belongs to the technical field of communication equipment, and specifically relates to a conductive foam and electronic equipment.
  • 3D curved flexible screens can bring better grip and at the same time Come for a more comprehensive visual experience of the sidewall.
  • 5G mobile phones are gradually commercialized, due to high-frequency signal (such as 5.8GHz wifi, sub 6G, etc.) antennas, multiple input multiple output (Multiple Input Multiple Output, MIMO) multiple antennas and other new technologies
  • high-frequency signal such as 5.8GHz wifi, sub 6G, etc.
  • MIMO Multiple Input Multiple Output
  • high-frequency antennas such as 5G need to be designed on the left and right sides of the mobile phone, right at the bottom of the flexible screen. Since the bottom of the flexible screen is equipped with metal copper foil, etc., it will absorb high-frequency antennas such as 5G. Therefore, it is necessary to design a ground between the bottom metal middle frame and the 3D flexible screen, which not only requires a small ground impedance, a large contact area, and reliable contact, but also requires a ground location close to a high-frequency sidewall antenna such as 5G.
  • the conventional grounding design between the bottom metal middle frame and the 3D flexible screen is to design a nickel-plated cloth wrapped conductive foam on the flat area of the bottom of the screen.
  • the inventor found that there is at least in the prior art The following problem: conductive foam wrapped with nickel-plated conductive cloth, when pre-stressed vigorously, the conductive cloth will form a 180-degree bend, resulting in cracks in the coating on the surface of the conductive cloth, which affects the conduction resistance.
  • the purpose of the embodiments of the present application is to provide a conductive foam and an electronic device, which can solve the problem of cracks in the surface coating of the conductive cloth when the conductive foam is pre-pressed with great strength.
  • an embodiment of the present application provides a conductive foam, including: a foam body, a conductive film, and an adhesive layer;
  • the foam body includes a first foam body and a second foam body that are arranged in close contact with each other, and a support plate arranged on the second foam body;
  • the conductive film is wrapped and disposed on the first surface, the second surface, and the third surface of the foam body, and the first part is wrapped and disposed on the fourth surface of the foam body;
  • the adhesive layer is provided on the second part of the fourth surface.
  • an embodiment of the present application provides an electronic device, including: a screen, a metal middle frame connected to the screen, the metal middle frame is provided with a groove, and the groove is provided with the above-mentioned Conductive foam, and the conductive foam is attached to the arc-shaped area of the screen.
  • a support plate is provided on the second foam body.
  • the support plate has good bending resistance. Therefore, the pressure resistance of the foam body can be greatly improved. It can effectively prevent the coating on the surface of the conductive cloth from cracking when it is preloaded vigorously.
  • Figure 1 is one of the structural schematic diagrams of the conductive foam of the embodiment of the present application.
  • Fig. 2 is the second structural diagram of the conductive foam according to the embodiment of the present application.
  • FIG. 3 is the third structural diagram of the conductive foam of the embodiment of the present application.
  • Fig. 4 is the fourth structural diagram of the conductive foam of the embodiment of the present application.
  • FIG. 5 is the fifth structural diagram of the conductive foam of the embodiment of the present application.
  • Fig. 6 is an exploded schematic diagram of the conductive foam according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • Fig. 8 is a structural block diagram of an electronic device according to an embodiment of the present application.
  • an embodiment of the present application provides a conductive foam, including: a foam body, a conductive film and an adhesive layer;
  • the foam body includes a first foam body 101 and a second foam body 102 that are attached to each other, and a support plate 1021 that is arranged on the second foam body;
  • the conductive film 103 covers the first surface, the second surface, the third surface of the foam body, and covers the first part of the fourth surface of the foam body. That is to say, in the embodiment of the present application, the outline of the conductive film is a non-closed curved surface.
  • the above-mentioned first surface is the lower surface
  • the second surface is the left side surface
  • the third surface is the right side surface
  • the fourth surface is the upper surface.
  • the adhesive layer 104 is disposed on the second part of the fourth surface.
  • the first foam body 101 and the second foam body 102 are arranged in parallel, and the above-mentioned second foam body 102 (may be one or more) is arranged on the first foam body 101
  • the opposite sides (as shown in Figs. 1 to 4) or are arranged on one side of the first foam body 101 (as shown in Fig. 5).
  • the first foam body 101 and the at least one second foam body 102 are aligned to form a foam body.
  • the height of the first foam body 101 is the same as the height of the second foam body provided with the support plate 1021 to ensure that the surface of the foam body is flat.
  • the aforementioned support plate 1021 is a thermoplastic polyester polyethylene terephthalate (Polyethylene terephthalate, PET) support plate.
  • the PET support plate has high bending strength and good bending life, and it is not easy to break under overpressure.
  • the above-mentioned first foam body and second foam body are both soft cotton core materials with very low density. Therefore, the foam bodies of the embodiments of the present application have ultra-high resilience, are not easy to creep and age, and have good elasticity sustainability. .
  • the above-mentioned conductive film is wrapped on the first surface, the second surface, and the third surface of the foam body, and the first part wrapped on the fourth surface of the foam body,
  • the adhesive layer is arranged on the second part of the fourth surface, and the adhesive layer and the conductive film form a closed curved surface.
  • the adhesive layer is specifically insulating glue. Since the bottom of the conductive foam uses insulating glue, as shown in Figure 1 , Two parallel conduction paths are formed on the left and right sides to avoid the resistance bottleneck formed by the conductive double sides at the bottom.
  • the conductive film is a gold-plated conductive film.
  • the conduction of the conductive foam is realized by the conductive cloth of the foam body.
  • the gold-plated conductive film has a small resistance value and is stable, which can improve the antenna performance and ensure the uniformity of the antenna radiation power.
  • a support plate is arranged on the second foam body.
  • the support plate has good bending resistance. Therefore, the pressure resistance of the foam body can be greatly improved. When cotton is preloaded with great force, it can effectively prevent the coating on the surface of the conductive cloth from cracking.
  • the foam body includes two second foam bodies 102, and the two second foam bodies 102 are respectively disposed on the first foam body.
  • the two second foam bodies are arranged on opposite sides of the first foam body along the x-axis direction (the length direction of the first foam body).
  • the two second foam bodies 102 are attached to the two side surfaces of the first foam body 101 respectively, and the three foam bodies are arranged to form the aforementioned foam body.
  • a second foam body By arranging a second foam body to prevent overpressure on both sides of the first foam body, that is to say, the second foam body with overpressure prevention function on the left and right sides and the first foam body in the middle After being aligned, it becomes the main source of the elasticity of the foam body, so that when the conductive foam is vigorously pre-pressed, the wrapped conductive film will bend at an angle of R, which will not cause cracks on the surface of the conductive film, thereby not affecting the conduction Resistance.
  • the foam body includes one second foam body 102, one second foam body 102 and the first foam body 101 The side fits the setting.
  • a second foam body is arranged on the left or right side of the first foam body, and the two are arranged to form a foam body.
  • a second foam body and the first foam body are arranged to form a foam body.
  • the foam body can occupy a smaller space in the electronic device.
  • the support plate 1021 is provided on the first surface and the second surface of the second foam body 102, and the second surface is The first surface is parallel to the surface.
  • one of the above-mentioned supporting plates is attached to the upper surface and the lower surface of the second foam body to improve the pressure resistance of the second foam body.
  • the thickness of the above-mentioned support plate may be 0.1 mm to 2 mm.
  • the second foam body includes:
  • the supporting board 1021 is disposed between the first foam layer 1022 and the second foam layer 1023.
  • the above-mentioned support plate is provided in the middle of the second foam body, which can effectively prevent the problem of misalignment when the support plate is attached to the second foam body.
  • Second foam body soft cotton core
  • rigid PET support board with a thickness of 0.1mm to 2mm on the upper and lower surfaces of the cotton core
  • the surface of the polyimide film (PI) with a thickness of 10um to 25um is electroplated.
  • the copper is first plated with a thickness of 1um to 4um, and nickel is plated with a thickness of 0.5um to 2um and then plated with 0.05um. Thick gold.
  • PI gold-plated polyimide
  • two PET laminates with anti-overpressure are pasted on the soft side cotton core, and the middle soft main cotton core forms a support body, and the PI film surface is gold-plated, and the bottom is covered with a double-sided tape.
  • a super soft gold-plated conductive foam is formed.
  • the conductive foam wrapped with gold-plated PI due to the design of a PET support plate to prevent overpressure, when the conductive foam is pre-pressed with great strength, the wrapped conductive cloth will form a bend with an R angle of 0.2 mm to 0.5 mm. It causes cracks in the plating on the surface of the conductive cloth, which does not affect the conduction resistance.
  • an embodiment of the present application also provides an electronic device, including a screen 701, a metal middle frame 702 connected to the screen, the metal middle frame 702 is provided with a groove, and the groove is arranged There is the conductive foam 100 according to any one of claims 1 to 10, and the conductive foam is attached to the arc-shaped area of the flexible screen.
  • the screen is a 3D flexible screen.
  • the metal middle frame corresponds to the area at the bottom of the screen as a 5G high-frequency antenna radiator.
  • the groove is set at the position of the metal middle frame corresponding to the curved area of the flexible screen, so that the ground position of the conductive foam is close to the antenna radiator on the side wall, so that the ground return path is shortened (the ground loop path passes through).
  • the dotted line with arrow indicates, and the existing conductive foam is set in the screen area of the flexible screen), which reduces the transmission inductance, improves the grounding efficiency of the antenna, and improves the performance of the antenna, and because the grounding position of the conductive foam is close to the side
  • the antenna radiator on the wall reduces the overlap area between the bottom of the flexible screen and the return path of the metal middle frame, reduces the parasitic capacitance, and further improves the antenna radiation performance.
  • the gold-plated PI-wrapped conductive foam and soft cotton core produce less pressure on the bottom of the screen, and it is not easy to cause the flexible screen to produce bad appearance marks.
  • the upper surface of the conductive foam is attached to the arc-shaped area of the flexible screen.
  • the adhesive layer of the conductive foam is connected to the groove.
  • a strong adhesive layer is designed on the bottom of the conductive foam.
  • the adhesive layer is an insulating double-sided tape.
  • the conductive foam is fixed in the groove through the adhesive layer, which can effectively prevent electronic equipment from being placed in the groove. The conductive foam will loosen when it is dropped and shaken.
  • the electronic device of the embodiment of the present application can implement all the implementation manners in the above-mentioned conductive foam embodiment, and can achieve the same technical effect, which will not be repeated here.
  • FIG. 8 is a schematic diagram of the hardware structure of an electronic device that implements an embodiment of the present application.
  • the electronic device 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, etc. part.
  • the electronic device 800 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 810 through a power management system, so that the power management system can manage charging, discharging, and power management. Consumption management and other functions.
  • a power source such as a battery
  • the structure of the electronic device shown in FIG. 8 does not constitute a limitation on the electronic device.
  • the electronic device may include more or less components than those shown in the figure, or some components may be combined, or different component arrangements, which will not be repeated here. .

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  • General Engineering & Computer Science (AREA)
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Abstract

一种导电泡棉和电子设备。导电泡棉包括：泡棉体、导电膜（103）和粘结层（104）；所述泡棉体包括贴合设置的第一泡棉体（101）和第二泡棉体（102），以及设置在所述第二泡棉体（102）上的支撑板（1021）；所述导电膜（103）包覆设置于所述泡棉体的第一表面、第二表面、第三表面以及包覆设置于所述泡棉体的第四表面的第一部分；所述粘结层（104）设置在所述第四表面的第二部分。

Description

导电泡棉和电子设备
相关申请的交叉引用
本申请主张在2020年6月19日在中国提交的中国专利申请号No.202010563890.2的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信设备技术领域，具体涉及一种导电泡棉和电子设备。
背景技术
随着手机行业的发展，消费者对于手机屏幕的视觉和触觉需求越来越强，因此，产生了3D曲面的柔性屏幕，3D曲面的柔性屏幕可以带来更好的手握感，同时可带来更加全面的侧壁视觉感受。另一方面，随着通信技术的发展，5G手机逐渐商用化，由于高频信号(例如5.8GHz wifi、sub 6G等)天线、多输入多输出(Multiple Input Multiple Output，MIMO)多天线等新技术采用，对接地的要求越来越严格。
由于现在的手机需要兼容3G/4G等频率，导致5G等高频天线需要设计在手机的左右两侧，正好位于柔性屏幕底部。柔性屏幕底部由于带有金属铜箔等，会对5G等高频天线产生吸收。所以需要在底部金属中框和3D柔性屏幕之间设计一个接地，不但要求接地阻抗小，接触面积大，接触要求可靠，而且要求接地位置靠近5G等高频侧壁天线。
目前底部金属中框和3D柔性屏幕之间常规的接地设计是在屏幕底部的平面区域设计了一个镀镍布包裹的导电泡棉，在实现本申请过程中，发明人发现现有技术中至少存在如下问题：采用镀镍的导电布包裹的导电泡棉，在大力预压时，导电布会形成180度的折弯，导致导电布表面镀层龟裂，影响导通阻值。
发明内容
本申请实施例的目的是提供一种导电泡棉和电子设备，能够解决导电泡 棉在大力预压时会导致导电布的表面镀层龟裂的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种导电泡棉，包括：泡棉体、导电膜和粘结层；
所述泡棉体包括贴合设置的第一泡棉体和第二泡棉体，以及设置在所述第二泡棉体上的支撑板；
所述导电膜包覆设置于所述泡棉体的第一表面、第二表面、第三表面以及包覆设置于所述泡棉体的第四表面的第一部分；
所述粘结层设置在所述第四表面的第二部分。
第二方面，本申请实施例提供了一种电子设备，包括：屏幕，与所述屏幕连接的金属中框，所述金属中框设置有凹槽，所述凹槽内设置有如上所述的导电泡棉，且所述导电泡棉与所述屏幕的弧形区域贴合。
在本申请实施例中，在第二泡棉体上设置了支撑板，该支撑板具有较好的抗弯折性能，因此，能够较大的提升泡棉体的抗压力，在导电泡棉受到大力预压时能够有效防止导电布表面的镀层发生龟裂。
附图说明
图1是本申请实施例的导电泡棉的结构示意图之一；
图2是本申请实施例的导电泡棉的结构示意图之二；
图3是本申请实施例的导电泡棉的结构示意图之三；
图4是本申请实施例的导电泡棉的结构示意图之四；
图5是本申请实施例的导电泡棉的结构示意图之五；
图6是本申请实施例的导电泡棉的爆炸示意图；
图7是本申请实施例的电子设备的结构示意图；
图8是本申请实施例的电子设备的结构框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全 部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的导电泡棉和电子设备进行详细地说明。
如图1、图2、图3、图4、图5和图6所示，本申请实施例提供了一种导电泡棉，包括：泡棉体、导电膜和粘结层；
所述泡棉体包括贴合设置的第一泡棉体101和第二泡棉体102，以及设置在所述第二泡棉体上的支撑板1021；
所述导电膜103包覆设置于所述泡棉体的第一表面、第二表面、第三表面以及包覆设置于所述泡棉体的第四表面的第一部分。也就是说，在本申请实施例中，上述导电膜的外形轮廓为非封闭曲面。例如，上述第一表面为下表面、第二表面为左侧面、第三表面为右侧面、第四表面为上表面。
所述粘结层104设置在所述第四表面的第二部分。
本申请实施例中，第一泡棉体101和第二泡棉体102平行设置，上述第二泡棉体102(可以为一个，也可以为多个)设置于所述第一泡棉体101的相对两侧(如图1至图4所示)或设置于所述第一泡棉体101的一侧(如图5所示)。上述第一泡棉体101与至少一个第二泡棉体102排齐后形成泡棉体。其中，第一泡棉体101的高度与设置有支撑板1021的第二泡棉体的高度相同，以保证泡棉体的表面为平面。
可选的，上述支撑板1021为热塑性聚酯聚对苯二甲酸乙二醇酯(Polyethylene terephthalate，PET)支撑板。该PET支撑板折弯强度高且折弯寿命好，过压时不容易断裂。
上述第一泡棉体和第二泡棉体均为密度很低的柔软棉芯材料，因此，本 申请实施例的泡棉体具有超高的回弹性，不容易蠕变老化，弹性持续力好。
本申请实施例中，如图1至5所示，上述导电膜包覆在泡棉体的第一表面、第二表面、第三表面，以及包裹在泡棉体的第四表面的第一部分，上述粘结层设置在第四表面的第二部分，该粘结层与上述导电膜形成封闭曲面，该粘结层具体为绝缘胶，由于导电泡棉的底部采用绝缘胶，如图1所示，在左右两侧形成2个并联的导通路径，避免底部的导电双面形成阻值瓶颈。
可选的，所述导电膜为镀金导电膜。
本申请实施例中，导电泡棉的导通通过泡棉体的导电布实现，该镀金导电膜阻值小且稳定，能够提升天线性能，同时能够保证天线辐射功率的一致性。
另外，由于金层表面不会形成氧化膜，在接触界面不容易产生杂波，不容易引发无源互调干扰，降低干扰天线的风险，能够有效提升天线性能，另外，由于金层化学性质稳定，耐腐蚀性好，遇到盐雾和汗液不会发生化学腐蚀，不会发生表面镀层发黑脱落，具有良好的导通阻值。
本申请实施例的导电泡棉，在第二泡棉体上设置了支撑板，该支撑板具有较好的抗弯折性能，因此，能够较大的提升泡棉体的抗压力，在导电泡棉受到大力预压时能够有效防止导电布表面的镀层发生龟裂。
作为一种可选的实现方式，如图1至图4所示，所述泡棉体包括两个第二泡棉体102，两个所述第二泡棉体102分别设置于所述第一泡棉体101的相对两侧，如图2所示，两个所述第二泡棉体设置于第一泡棉体沿x轴方向(第一泡棉体的长度方向)的相对两侧。
具体的，两个第二泡棉体102分别与第一泡棉体101的两个侧面贴合设置，三个泡棉体排列形成上述泡棉体。
通过在第一泡棉体的两侧分别设置一个防过压的第二泡棉体，也就是说，左右两侧的带防过压功能的第二泡棉体与中间的第一泡棉体排齐后，成为泡棉体弹力的主要来源，使得导电泡棉在大力预压时，包裹的导电膜会形成R角度的弯折，不会导致导电膜表面镀层龟裂，进而不影响导通阻值。
作为另一种可选的实现方式，如图5所示，所述泡棉体包括一个所述第二泡棉体102，一个所述第二泡棉体102与所述第一泡棉体101的侧面贴合 设置。
将一个第二泡棉体设置在第一泡棉体的左侧或者右侧，两者排列形成泡棉体。
这里，设置一个第二泡棉体与第一泡棉体排列形成泡棉体，在保证泡棉体抗压力的前提下，能够使得泡棉体在电子设备中占用较小的空间。
作为一种可选的实现方式，如图1和图2所示，所述支撑板1021设置于所述第二泡棉体102的第一表面和第二表面，所述第二表面为与所述第一表面平行的表面。
例如，在第二泡棉体的上表面和下表面分别贴一个上述支撑板，以提高第二泡棉体的抗压力。上述支撑板的厚度可以为0.1mm至2mm。
作为另一种可选的实现方式，如图3和图4所示，所述第二泡棉体包括：
第一泡棉层1022和第二泡棉层1023；
所述支撑板1021设置于所述第一泡棉层1022和所述第二泡棉层1023之间。
这里，在第二泡棉体的中间设置上述支撑板，能够有效防止在第二泡棉体上贴合支撑板时贴合错位的问题。
下面对导电泡棉的制作工艺进行如下说明。
首先，采用1个厚度较小的侧壁柔软棉芯(第二泡棉体)，在棉芯的上表面和下表面贴0.1mm至2mm厚度的硬质PET支撑板；
其次，将左右两侧的带防过压PET支撑板的超软棉芯，与中间的主支撑柔软棉芯(第一泡棉体)排成一个组合棉芯(泡棉体)；
接着，采用10um至25um厚度的聚酰亚胺薄(Polyimide Film，PI)膜表面采用电镀工艺，先镀1um至4um厚度的铜打底，接触镀0.5um至2um厚度的镍后再镀0.05um厚的金。
再者，将镀好金的聚酰亚胺(Polyimide，PI)膜，包裹在带防过压PET支撑案的组合棉芯上，底部露出一段棉芯。
最后，将粘性很强的双面胶粘贴在底部中间露出的棉芯上。采用模切工艺切断成1小个独立的导电泡棉。
本申请实施例中，将2个带防过压PET叠层贴在柔软的侧边棉芯上，与 中间柔软主棉芯组成支撑体，并在PI膜表面镀金，底部覆盖一个双面胶，形成一个超软的镀金包裹导电泡棉。采用镀金PI包裹的导电泡棉，由于设计了防过压的PET支撑板，导电泡棉在大力预压时，包裹的导电布会形成带R角度为0.2毫米至0.5毫米的弯折，不会导致表层导电布表面的镀层龟裂，进而不影响导通阻值。
如图7所示，本申请实施例还提供了一种电子设备，包括屏幕701，与所述屏幕连接的金属中框702，所述金属中框702设置有凹槽，所述凹槽内设置有如权利要求1至10任一项所述的导电泡棉100，且所述导电泡棉与所述柔性屏幕的弧形区域贴合。
该屏幕为3D柔性屏幕。如图7所示，该金属中框对应于屏幕底部的区域作为5G高频天线辐射体。本申请实施例中，将凹槽设置在金属中框对应于柔性屏幕弧形区域的位置，进而使得导电泡棉的接地位置靠近侧壁的天线辐射体，使得接地回流路径缩短(接地回路路径通过带箭头的虚线指示，且现有导电泡棉都是设置在柔性屏幕的屏幕区域)，降低产生的传输电感，提升天线的接地效率，并提高天线性能，而且由于导电泡棉的接地位置靠近侧壁的天线辐射体，导致柔性屏幕底部与金属中框的回流路径上的重合面积减小，减小了寄生电容，进一步提升了天线辐射性能。另外，镀金PI包裹的导电泡棉和柔软的棉芯，对于屏幕底部产生较小的压强，不容易引发柔性屏幕产生外观不良的印痕。另，假设导电泡棉的下表面设置有上述粘结层，则导电泡棉的上表面与柔性屏幕的弧形区域贴合。
具体的，导电泡棉的粘结层与所述凹槽连接。
这里，在导电泡棉的底部设计了一层粘性很强的粘结层，该粘结层为绝缘双面胶，通过该粘结层导电泡棉固定在凹槽内，能够有效防止电子设备在跌落震动时导致导电泡棉松脱。
需要说明的是，本申请实施例的电子设备能够实现上述导电泡棉实施例中的所有实现方式，且能达到相同的技术效果，此处不再赘述。
图8为实现本申请实施例的一种电子设备的硬件结构示意图。
该电子设备800包括但不限于：射频单元801、网络模块802、音频输出单元803、输入单元804、传感器805、显示单元806、用户输入单元807、 接口单元808、存储器809、以及处理器810等部件。
本领域技术人员可以理解，电子设备800还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器810逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图8中示出的电子设备结构并不构成对电子设备的限定，电子设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
尽管已描述了本申请实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种导电泡棉，包括：泡棉体、导电膜和粘结层；
    所述泡棉体包括贴合设置的第一泡棉体和第二泡棉体，以及设置在所述第二泡棉体上的支撑板；
    所述导电膜包覆设置于所述泡棉体的第一表面、第二表面、第三表面以及包覆设置于所述泡棉体的第四表面的第一部分；
    所述粘结层设置在所述第四表面的第二部分。
  2. 根据权利要求1所述的导电泡棉，其中，所述泡棉体包括两个第二泡棉体，两个所述第二泡棉体分别设置于所述第一泡棉体的相对两侧。
  3. 根据权利要求1所述的导电泡棉，其中，所述泡棉体包括一个所述第二泡棉体，一个所述第二泡棉体与所述第一泡棉体的侧面贴合设置。
  4. 根据权利要求1所述的导电泡棉，其中，所述支撑板设置于所述第二泡棉体的第一表面和第二表面，所述第二表面为与所述第一表面平行的表面。
  5. 根据权利要求1所述的导电泡棉，其中，所述第二泡棉体包括：
    第一泡棉层和第二泡棉层；
    所述支撑板设置于所述第一泡棉层和所述第二泡棉层之间。
  6. 根据权利要求1所述的导电泡棉，其中，所述导电膜为镀金导电膜。
  7. 根据权利要求1所述的导电泡棉，其中，所述支撑板为热塑性聚酯PET支撑板。
  8. 根据权利要求1所述的导电泡棉，其中，所述第一泡棉体的高度与设有支撑板的第二泡棉体的高度相同。
  9. 一种电子设备，包括：屏幕，与所述屏幕连接的金属中框，所述金属中框设置有凹槽，所述凹槽内设置有如权利要求1至8任一项所述的导电泡棉，且所述导电泡棉与所述屏幕的弧形区域贴合。
  10. 根据权利要求9所述的电子设备，其中，所述导电泡棉的粘结层与所述凹槽连接。
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