技术领域technical field
本实用新型涉及一种电缆配件，具体是通信电缆上带有铝箔的屏蔽膜。The utility model relates to a cable fitting, in particular to a shielding film with aluminum foil on a communication cable.
背景技术Background technique
屏蔽膜是通信电缆的重要配件，通常是与金属丝编织层一起形成电缆的外导体(即屏蔽层)，作用是抗干扰；这是因为信号在传输过程中肯定会遇到多多少少的干扰，如高压电磁场、低压电磁场、高频电波等的干扰，线越长干扰越大，损耗也越大。所以电缆的屏蔽要求随线路的增加而增加。The shielding film is an important accessory of the communication cable. It usually forms the outer conductor of the cable (ie, the shielding layer) together with the wire braid, and its function is to resist interference; this is because the signal will definitely encounter more or less interference during transmission. , such as interference from high-voltage electromagnetic fields, low-voltage electromagnetic fields, and high-frequency radio waves, the longer the line, the greater the interference and the greater the loss. Therefore, the shielding requirements of the cable increase with the increase of the line.
电缆屏蔽膜的常规结构是包覆在电缆绝缘层上，而后通过注塑工艺在屏蔽膜的外部形成包覆屏蔽膜的护套；但是通常包覆屏蔽膜后电缆的柔软性就会降低。随着通讯事业的飞速发展，5G移动通讯微基站与北斗卫星定位与导航用的低损耗超柔电缆，以及受空间限制的军用特柔电缆，为了满足各种环境下的弯曲需要，均需要很好的强度、柔性与屏蔽性能。但为了改善屏蔽效果增加铝箔厚度,又容易导致铝箔开裂；如机车、机器人等智能设备用的数据总线，如果屏蔽用铝箔太厚，反而弯曲开裂严重，影响屏蔽效果，增加了信号传输不准确的可能性。The conventional structure of the cable shielding film is to cover the cable insulation layer, and then form a sheath covering the shielding film on the outside of the shielding film through an injection molding process; but usually the flexibility of the cable will be reduced after the shielding film is coated. With the rapid development of the communication industry, 5G mobile communication micro base stations and Beidou satellite positioning and navigation low-loss ultra-flexible cables, as well as space-limited military ultra-flexible cables, in order to meet the bending needs of various environments, require a lot of space. Good strength, flexibility and shielding properties. However, in order to improve the shielding effect, increasing the thickness of the aluminum foil will easily lead to cracking of the aluminum foil; if the shielding aluminum foil is too thick for the data bus used for smart devices such as locomotives and robots, the bending and cracking will be serious, which will affect the shielding effect and increase the inaccurate signal transmission. possibility.
实用新型内容Utility model content
本实用新型的目的是克服上述背景技术中的不足，提供一种高柔软性电缆屏蔽膜，该屏蔽膜应具有柔软性好、强度高、屏蔽性能优良的特点，以满足有关方面的需要。The purpose of this utility model is to overcome the disadvantages of the above-mentioned background technology and provide a highly flexible cable shielding film. The shielding film should have the characteristics of good flexibility, high strength and excellent shielding performance, so as to meet the needs of relevant parties.
本实用新型采用的技术方案是：The technical scheme that the utility model adopts is:
一种高强度、高柔软性电缆屏蔽膜，包括镀铝膜；其特征在于所述镀铝膜的铝箔表面依次复合有两层PET膜。A high-strength, high-flexibility cable shielding film, comprising an aluminized film, is characterized in that the surface of the aluminum foil of the aluminized film is sequentially compounded with two layers of PET films.
所述镀铝膜包括PET以及真空沉积在PET上的铝箔。The aluminized film includes PET and aluminum foil vacuum-deposited on the PET.
所述PET的厚度为9-20微米。The thickness of the PET is 9-20 microns.
所述铝膜的厚度为3-5微米。The thickness of the aluminum film is 3-5 microns.
本实用新型的有益效果是：由于在镀铝膜的铝箔表面依次复合有两层PET膜，不但所形成的屏蔽膜的强度得到显著增强，而且柔软性较之采用单层较厚PET(相当于本实用新型中依次复合的两层PET膜厚度)显著提高，并且屏蔽性能优良，满足许多场合的使用要求。The beneficial effects of the utility model are: since two layers of PET films are sequentially compounded on the surface of the aluminum foil of the aluminized film, not only the strength of the formed shielding film is significantly enhanced, but also the softness is better than that of single-layer thicker PET (equivalent to In the utility model, the thickness (thickness) of the two layers of PET films sequentially compounded is significantly improved, and the shielding performance is excellent, which meets the use requirements of many occasions.
附图说明Description of drawings
图1是本实用新型的主视结构示意图。Fig. 1 is a schematic diagram of the front view of the utility model.
图2是本实用新型中的镀铝膜的主视结构示意图。Fig. 2 is a schematic diagram of the front view of the aluminized film in the present invention.
具体实施方式Detailed ways
下面结合附图所示实施例，对本实用新型作进一步说明。Below in conjunction with the embodiment shown in the accompanying drawings, the utility model is further described.
附图所示的高强度、高柔软性电缆屏蔽膜，包括镀铝膜1；该镀铝膜包括PET 1-2以及真空沉积在PET上的铝箔1-1。The high-strength, high-flexibility cable shielding film shown in the accompanying drawings includes an aluminized film 1; the aluminized film includes PET 1-2 and aluminum foil 1-1 vacuum-deposited on the PET.
通常的做法还在镀铝膜上复合一层PET；为增加屏蔽膜的机械强度，该层PET一般为较厚的PET(30-50微米)。由此带来的缺点是电缆的柔软性不够，显得比较僵硬，不利于许多场合的工作需要。The usual practice is to compound a layer of PET on the aluminum-plated film; in order to increase the mechanical strength of the shielding film, this layer of PET is generally thicker PET (30-50 microns). The disadvantage brought by this is that the flexibility of the cable is not enough, and it seems relatively stiff, which is not conducive to the work needs of many occasions.
本实用新型的改进，是在镀铝膜的铝箔表面复合一层PET(第一PET 2)之后，接着在第一PET上再复合一层PET(第二PET 3)，用两层较薄的PET(推荐每层PET厚度为9-20微米)来取代一层较厚的PET；如此，能够在保证增加机械强度和屏蔽性能的前提下，柔软性能也不会降低(与包覆一层较厚的PET膜比较，柔软性则有显著的提高)。The improvement of the present utility model is that after compounding one deck PET (the first PET 2) on the aluminum foil surface of the aluminized film, then compounding one deck PET (the second PET 3) on the first PET again, use two layers of thinner PET (the thickness of each layer of PET is recommended to be 9-20 microns) is used to replace a thicker layer of PET; in this way, under the premise of ensuring increased mechanical strength and shielding performance, the softness performance will not be reduced (compared with the coating layer) Compared with thick PET film, the softness is significantly improved).
作为推荐，所述铝膜的厚度为3-5微米。As a recommendation, the thickness of the aluminum film is 3-5 microns.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748496.6UCN207690522U (en) | 2017-12-14 | 2017-12-14 | A kind of high intensity, high flexibility cable shielding film |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748496.6UCN207690522U (en) | 2017-12-14 | 2017-12-14 | A kind of high intensity, high flexibility cable shielding film |
| Publication Number | Publication Date |
|---|---|
| CN207690522Utrue CN207690522U (en) | 2018-08-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721748496.6UExpired - Fee RelatedCN207690522U (en) | 2017-12-14 | 2017-12-14 | A kind of high intensity, high flexibility cable shielding film |
| Country | Link |
|---|---|
| CN (1) | CN207690522U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927850A (en)* | 2021-02-01 | 2021-06-08 | 浙江正泰电缆有限公司 | Fireproof flame-retardant cable and preparation method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927850A (en)* | 2021-02-01 | 2021-06-08 | 浙江正泰电缆有限公司 | Fireproof flame-retardant cable and preparation method thereof |
| CN112927850B (en)* | 2021-02-01 | 2022-07-26 | 浙江正泰电缆有限公司 | Fireproof flame-retardant cable and preparation method thereof |
| Publication | Publication Date | Title |
|---|---|---|
| CN208014407U (en) | signal transmission cable | |
| CN101174494A (en) | Cable and its manufacturing method | |
| CN207690522U (en) | A kind of high intensity, high flexibility cable shielding film | |
| CN204740908U (en) | Heat-resistant and UV-resistant trunk data cable | |
| CN204440919U (en) | A kind of pair twist data line shielding composite copper foil and use this Copper Foil | |
| CN211507215U (en) | Electromagnetic interference resistant superfine high-definition coaxial cable | |
| CN207692290U (en) | Composite metal layer shielding material and shielded cable using the shielding material | |
| CN203288308U (en) | High-shielding-performance tensile signal wire cable | |
| CN103680722B (en) | Anti-interference signal cable | |
| CN202502828U (en) | A double shielded communication cable | |
| CN206976049U (en) | Headphone cable with improved anti-interference performance | |
| CN202711851U (en) | Ultra-flexible coaxial-cable | |
| CN203760107U (en) | Hydrolysis resistance high temperature aviation cable | |
| CN203311902U (en) | Cable | |
| CN204991198U (en) | Magnetoelectric cable is surveyed to high flexibility | |
| CN204740907U (en) | Trunk grade high flame retardant shielded data cable | |
| CN205751608U (en) | A kind of corrosion-resistant shielded cable of industrial antidamping | |
| CN205542006U (en) | 150 DEG C motor draws and meets lead cable | |
| CN204463864U (en) | A flexible shielded intermediate frequency flexible cable for ships | |
| CN102682892B (en) | cable | |
| CN203205108U (en) | Multi-core computer wire | |
| CN203338831U (en) | Anti-interference cable | |
| CN207541979U (en) | A kind of high shielding low noise coaxial cable | |
| CN204651084U (en) | A kind of electromagnetism interference cable | |
| CN203242415U (en) | Low-delay compound-type data cable with waterproof performance |
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180803 |