CN111029048A - Special shielding treatment method for cable - Google Patents
Special shielding treatment method for cable Download PDFInfo
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- CN111029048A CN111029048A CN201911308445.5A CN201911308445A CN111029048A CN 111029048 A CN111029048 A CN 111029048A CN 201911308445 A CN201911308445 A CN 201911308445A CN 111029048 A CN111029048 A CN 111029048A
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- cable
- shielding
- shielding layer
- conductive adhesive
- adhesive tape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a special shielding treatment method of a cable, belonging to the technical field of cable shielding treatment and comprising the following steps: 1) carrying out seamless lap joint on the exposed cable at the end of the shielded cable; 2) processing the continued shielding layer; 3) and processing the end head of the continued shielding layer. The method provided by the invention can solve the phenomena of electromagnetic leakage and signal distortion of the exposed cable without the shielding layer after the shielding cable is tapped or is connected with the electric connector, and has good electromagnetic shielding effect, the lapping mode can prevent the shielding metal wire after the cable shielding layer is tapped from puncturing the cable insulating layer to cause short circuit, and the end processing mode after the shielding layer is continued can prevent the conductive adhesive tape from loosening and falling to cause short circuit; these cables make unmanned aerial vehicle can also normally receive signal's transmission and switching in the complicated environment of electromagnetic environment when being used for unmanned aerial vehicle, guarantee the stability that unmanned aerial vehicle controlled.
Description
Technical Field
The invention relates to the technical field of cable shielding treatment, in particular to a special shielding treatment method for a cable.
Background
Unmanned aerial vehicle's task equipment transmitting power is big, the receiving sensitivity is high, and it is sensitive to fly to control equipment, and unmanned aerial vehicle space is narrow and small, electronic equipment is various, and the discharge of signal kind complicacy and power heavy current leads to the electromagnetic environment of aircraft complicated, and the interference killing feature requirement of signal in transmission, switching in-process is higher.
In order to realize power supply safety under complex electromagnetic environment conditions, the signal attenuation is reduced. The aircraft cable adopts the design mode of outer layer full shielding, eliminates electromagnetic interference that radiation and conduction arouse, adopts seamless overlap joint technique at cable junction, switching department, shielding fault isotop position, twines electromagnetic interference's special electrically conductive adhesive tape, handles according to specific direction and overlap joint density, improves the interference killing feature of whole cable.
On an unmanned aerial vehicle, the aircraft shielding cable is manufactured and processed by adopting a common method, and the electromagnetic compatibility requirement of the aircraft cannot be met in the power supply and signal transmission process. Particularly, after the shielded cable is terminated with an electric connector (single-hole plug) or a shielded cable shielding layer is tapped, a section of cable without a shielding layer is formed, and the phenomena of electromagnetic leakage and signal distortion occur during signal transmission, so that the shielding effect of the cable is influenced.
Disclosure of Invention
The invention aims to provide a special cable shielding treatment method which solves the phenomena of electromagnetic leakage and signal distortion of an exposed cable without a shielding layer after a shielded cable is tapped or is connected with an electric connector (a single-hole plug pin) and has a good electromagnetic shielding effect.
The invention is realized by the following technical scheme: a special shielding treatment method for a cable comprises the following steps:
(1) carrying out seamless lap joint on the exposed cable at the end of the shielded cable;
(2) processing the continued shielding layer;
(3) and processing the end head of the continued shielding layer.
The working principle of the technical scheme is that a seamless lapping technology is adopted, the exposed non-shielding layer part of the shielding layer at the end of the cable is tapped, and the conducting adhesive tape is used for continuous processing, so that seamless lapping shielding is realized. The method mainly comprises the steps of seamless overlapping of shielding layers of the ends of the shielded cables, continuous processing of the shielding layers and end processing after the shielding layers are continued. When the shielded cable is connected with the electric connector in a terminating mode, the exposed cable without the shielding layer after the shielding layer is tapped is easy to interfere in the signal transmission process. The method adopts a seamless lapped special shielding technology, utilizes multiple performances of the conductive adhesive tape, laps and continues the shielding layer according to a specific process method, winds and binds according to a certain direction and coverage density, strengthens the shielding effect of the cable, and improves the anti-interference capability of the whole cable.
In order to better implement the present invention, further, the specific process of seamlessly overlapping the bare cables at the ends of the shielded cables in step (1) is as follows: turning the shielding layer at the shielding tap of the cable outwards, winding the shielding layer for a plurality of turns by using a PVC insulating tape, and pressing the metal wire of the shielding sleeve which is turned outwards.
In order to better realize the invention, the number of turns of the PVC insulating tape wound on the shielding layer is 2-3.
In order to better implement the present invention, further, the specific process of processing the continued shielding layer in step (2) is as follows: and the exposed cable and the insulating layer after the shielding layer is tapped are continuously wound by using the conductive adhesive tape with the shielding effect, the starting end of the conductive adhesive tape covers and exceeds the front edge line of the PVC insulating tape, and the tail end of the conductive adhesive tape is continued to the root of the electric connector, so that the continuation of the shielding layer is realized.
In order to better realize the invention, further, the shielding layer is continuously processed by lapping the conductive adhesive tape on the shielding layer wound with the PVC insulating tape, and the shielding layer is continuously wound and pasted in a mode that the rear edge of the conductive adhesive tape is pressed by half of the distance of the front edge. The starting end of the conductive adhesive tape covers and exceeds the front edge line of the PVC insulating tape, and the tail end of the conductive adhesive tape is continued to the root 10mm of the electric connector needing to be terminated, so that the continuation of the shielding layer is realized.
In order to better implement the present invention, further, the specific process of processing the end after the shielding layer is continued in step (3) is as follows: the starting end and the tail end of the wound conductive adhesive tape are wound and bound by black cotton threads, and the nitro glue solution is coated.
In order to better realize the method, the starting end and the tail end of the wound conductive adhesive tape are bound by black cotton threads for 6 to 8 circles and then bound, and then the bound black cotton threads are coated with nitro-glue solution.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention can solve the problems of signal interference and signal leakage of the shielded cable, the seamless lap joint of the shielding layers of the shielded cable can well avoid electromagnetic leakage, reduce radiation interference, enhance the anti-interference capability of the cable, avoid the phenomena of electromagnetic leakage and signal distortion of the exposed cable without the shielding layer and play a good role in electromagnetic shielding;
(2) the invention adopts the seamless lapping special shielding technology, utilizes the multiple properties of the conductive adhesive tape, laps and continues the shielding layer according to a specific process method, winds and binds along a certain direction and coverage density, strengthens the shielding effect of the cable and improves the anti-interference capability of the whole cable;
(3) the invention adopts a seamless lap joint mode, and can prevent the short circuit caused by the fact that the shielding metal wire after the cable shielding layer is tapped pierces the cable insulating layer. The end processing mode after the shielding layer continues can prevent that conductive adhesive tape is loose to drop and leads to the short circuit, and these cables make unmanned aerial vehicle can be in the environment that electromagnetic environment is complicated when being used for unmanned aerial vehicle, and the stability that unmanned aerial vehicle controlled is guaranteed in the transmission and the switching of also normal received signal.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of a seamless lap joint of cable ends.
Wherein: 1-shielding layer, 2-conductive adhesive tape, 3-black cotton thread and 4-electric connector.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
It should be understood broadly that they may be, for example, fixedly attached, removably attached, or integrally attached; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
the embodiment discloses a special shielding processing method of a cable, which comprises the following steps:
(1) carrying out seamless lap joint on the exposed cable at the end of the shielded cable;
(2) processing the continued shielding layer;
(3) and processing the end head of the continued shielding layer.
The shielded cable is composed of a shielding layer 1, a conductive adhesive tape 2, a black cotton wire 3 and an electrical connector 4, as shown in fig. 1.
In the specific implementation process, the method must be carried out strictly according to the sequence and the special process method, seamless overlapping is realized, and the shielding effect is enhanced.
The method turns the shielding layer 1 at the shielding tap outwards, winds the shielding layer by 12-3 circles by using a PVC insulating tape, and presses the shielding sleeve metal wire which is turned outwards. According to the method, the exposed cable including the insulating layer after the shielding layer is tapped is continuously wound by the conductive adhesive tape 2 with the shielding effect, the starting end of the conductive adhesive tape 2 covers and exceeds the front edge line of the PVC insulating tape, and the tail end of the conductive adhesive tape 2 is continued to the root of the single-hole plug pin 4 of the electric connector by 10mm, so that the continuation of the shielding layer is realized. The starting end and the tail end of the conductive adhesive tape 2 wound by the method are wound and bound by a black cotton thread 3 and coated with nitro glue solution.
Turning the metal wire of the shielding layer 1 of the shielding cable after tapping outwards, winding a PVC insulating tape, pressing the metal wire of the turning-outwards shielding layer 1, and preventing the metal wire of the shielding layer 1 from puncturing or scratching a cable insulating layer to cause short circuit.
The turned-out metal wire of the shielded cable is wound by the conductive adhesive tape 2 in a progressive and uninterrupted winding mode that the rear side of the conductive adhesive tape presses one half of the front side, and the starting point of the winding is beyond the front side line of the PVC insulating tape, so that the shielding sleeve and the conductive adhesive tape 2 are reliably and seamlessly lapped.
The head of the conductive adhesive tape 2 wound is collected, the starting end and the terminal of the conductive adhesive tape winding are wound, bound and knotted by the black cotton thread 3, and the nitryl glue solution is coated on the black cotton thread 3 which is knotted, so that the conductive adhesive tape is prevented from sliding. The seamless lap joint of the exposed cable at the end of the shielding cable is an ultrathin and ultra-flexible conductive adhesive tape with viscosity, which is conductive and has a shielding effect, and the overlapped shielding layer is overlapped with the damaged exposed wire. The shielding layer is continuously processed in such a way that the conductive adhesive tape is continuously wound and pasted in a way that the back side presses half of the distance of the front side. And (3) treating the end heads after the shielding layer is continued, binding the end heads at the two ends of the conductive adhesive tape by using black cotton wires for 6-8 circles, and then coating a nitro glue solution.
And (3) adopting a seamless lap joint technology, and carrying out continuous treatment on the exposed non-shielding layer part after the shielding layer of the cable end is tapped by using a conductive adhesive tape to realize seamless shielding lap joint. The method mainly comprises the steps of seamless overlapping of shielding layers of the ends of the shielded cables, continuous processing of the shielding layers and end processing after the shielding layers are continued.
The seamless lapping of the shielding layer at the end of the shielding cable is to turn the metal wire of the shielding layer at the end of the shielding cable outwards, wind the PVC insulating tape and press the metal wire of the outward turned shielding layer so as to prevent the metal wire of the shielding layer from puncturing or scratching the insulating layer of the cable and causing short circuit. Then, winding the cable shielding layer after the cable is turned outwards by using the ultrathin and super-flexible conductive adhesive tape with conductivity and shielding effect, wherein the starting point must exceed the front edge line of the PVC insulating tape during winding, so that the reliable lap joint of the shielding layer and the conductive adhesive tape is realized;
the shielding layer is continuously wound and stuck in a mode that the conductive adhesive tape is lapped on the shielding layer wound with the PVC insulating tape and the rear side of the conductive adhesive tape is pressed by half of the distance from the front side. The starting end of the conductive adhesive tape covers and exceeds the front edge line of the PVC insulating tape, and the tail end of the conductive adhesive tape is continued to the root of an electric connector (a single-hole bolt) to be terminated by 10mm, so that the continuation of the shielding layer is realized.
And the end treatment after the shielding layer is continued is to perform binding after the starting end and the terminal of the conductive adhesive tape are bound by the black cotton thread for 6-8 circles, and the bound black cotton thread is coated with nitro-glue solution to prevent the conductive adhesive tape from sliding.
It is understood that the working principle and working process of the cable structure according to an embodiment of the present invention, such as the cable shield layer 1 and the black cotton wire 3, are well known in the art and will not be described in detail herein.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A special shielding treatment method for a cable is characterized by comprising the following steps:
(1) carrying out seamless lap joint on the exposed cable at the end of the shielded cable;
(2) processing the continued shielding layer;
(3) and processing the end head of the continued shielding layer.
2. The special shielding treatment method for the cable according to claim 1, wherein the step (1) of seamlessly overlapping the bare cable at the end of the shielded cable comprises the following specific steps: turning the shielding layer at the shielding tap of the cable outwards, winding the shielding layer for a plurality of turns by using a PVC insulating tape, and pressing the metal wire of the shielding sleeve which is turned outwards.
3. The special shielding treatment method for the cable according to claim 2, wherein the PVC insulating tape is wound on the shielding layer for 2-3 turns.
4. The special shielding treatment method for the cable according to any one of claims 1 to 3, wherein the specific process of treating the continued shielding layer in the step (2) is as follows: and the exposed cable and the insulating layer after the shielding layer is tapped are continuously wound by using the conductive adhesive tape with the shielding effect, the starting end of the conductive adhesive tape covers and exceeds the front edge line of the PVC insulating tape, and the tail end of the conductive adhesive tape is continued to the root of the electric connector, so that the continuation of the shielding layer is realized.
5. The special shielding treatment method of cable according to claim 4, wherein said shielding layer is continued by overlapping conductive adhesive tape on the shielding layer wound with PVC tape, and by progressively and uninterruptedly winding and pasting the conductive adhesive tape in such a way that the rear edge of the conductive adhesive tape is pressed by half of the distance of the front edge,
the starting end of the conductive adhesive tape covers and exceeds the front edge line of the PVC insulating tape, and the tail end of the conductive adhesive tape is continued to the root 10mm of the electric connector needing to be terminated, so that the continuation of the shielding layer is realized.
6. The special shielding treatment method for the cable according to any one of claims 1 to 3, wherein the specific process of treating the end after the shielding layer is continued in the step (3) is as follows: the starting end and the tail end of the wound conductive adhesive tape are wound and bound by black cotton threads, and the nitro glue solution is coated.
7. The special shielding treatment method of the cable according to claim 6, wherein the binding is performed after the beginning and the end of the wound conductive adhesive tape are bound by black cotton thread for 6-8 circles, and then the nitro-glue solution is coated on the bound black cotton thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308445.5A CN111029048A (en) | 2019-12-18 | 2019-12-18 | Special shielding treatment method for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308445.5A CN111029048A (en) | 2019-12-18 | 2019-12-18 | Special shielding treatment method for cable |
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| Publication Number | Publication Date |
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| CN111029048A true CN111029048A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911308445.5A Pending CN111029048A (en) | 2019-12-18 | 2019-12-18 | Special shielding treatment method for cable |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205790741U (en) * | 2016-05-26 | 2016-12-07 | 四川拜伦科技有限公司 | A kind of cable connection assembly |
| CN107732579A (en) * | 2016-08-12 | 2018-02-23 | 东莞莫仕连接器有限公司 | Wire and cable connector |
| CN108448311A (en) * | 2018-05-09 | 2018-08-24 | 南京康尼新能源汽车零部件有限公司 | Meet the single right-angle connector of IP68 degree of protection |
| CN108988074A (en) * | 2018-07-02 | 2018-12-11 | 上海微小卫星工程中心 | One kind, which has, shields successional cable connection |
| CN109936003A (en) * | 2017-12-18 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of CA cable assembly, connector assembly and its connector |
-
2019
- 2019-12-18 CN CN201911308445.5A patent/CN111029048A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205790741U (en) * | 2016-05-26 | 2016-12-07 | 四川拜伦科技有限公司 | A kind of cable connection assembly |
| CN107732579A (en) * | 2016-08-12 | 2018-02-23 | 东莞莫仕连接器有限公司 | Wire and cable connector |
| CN109936003A (en) * | 2017-12-18 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of CA cable assembly, connector assembly and its connector |
| CN108448311A (en) * | 2018-05-09 | 2018-08-24 | 南京康尼新能源汽车零部件有限公司 | Meet the single right-angle connector of IP68 degree of protection |
| CN108988074A (en) * | 2018-07-02 | 2018-12-11 | 上海微小卫星工程中心 | One kind, which has, shields successional cable connection |
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Application publication date: 20200417 |